Feed Management for Catfish: Feeding Rates, Frequency, and Monitoring

By Dr. Zubair Khalid, DVM, MS, PhD · 2026-08-14

Key Takeaways

• Catfish feed rates are dictated by fish size and water temperature, with fingerlings requiring 5-8% of body weight daily and food fish 1-3%, adjusted significantly downwards as temperatures fall below 75°F (24°C).
• Optimal feeding occurs between 75-85°F (24-29°C), with feeding ceasing below 50°F (10°C) due to reduced metabolic activity and digestion rates.
• Monitoring feed intake via the 20-30 minute rule, where uneaten feed indicates overfeeding and rapid consumption suggests potential for increased ration, is crucial for optimizing feed conversion and preventing water quality degradation.
• A target Feed Conversion Ratio (FCR) of 1.5 to 2.0 pounds of feed per pound of gain is considered efficient, with deviations indicating potential issues with feed waste, fish health, or environmental conditions.
• Daily recordkeeping of feed amounts, water temperature, dissolved oxygen, and feeding behavior is essential for calculating FCR, tracking growth, and identifying early signs of problems like disease or poor water quality.
• Dissolved oxygen levels below 3 parts per million necessitate halting feeding to prevent stress and mortality, while ammonia and nitrite monitoring guides adjustments to feeding rates to mitigate toxic accumulation from waste.

Feed is the largest variable cost in commercial catfish production, often representing 50 to 60 percent of total operating expenses. Getting feeding right determines not only your profit margin but also water quality, fish health, and harvest weight uniformity. This guide covers how to calculate catfish feed rates, how often to feed catfish at different life stages, how to read feeding behavior, and how to keep the records that turn feeding from guesswork into a managed system. It is written for pond farmers, cage operators, and anyone raising catfish for food or stock, whether you manage a few acres or several hundred.

At a Glance

Why Feed Management Matters

Catfish have a reputation as hardy, forgiving fish. They tolerate low oxygen, poor water quality, and crowded conditions better than most cultured species. That hardiness can hide poor feeding practices for weeks or months, which is exactly why feed management deserves your attention. A fish that eats poorly today may not show signs of a problem until a disease outbreak or a disappointing harvest weight months later.

The core challenge in catfish feeding is balancing three competing goals. First, you want fish to grow as quickly as possible to shorten the production cycle. Second, you want to convert feed to body weight efficiently so that each pound of gain costs as little as possible. Third, you want to avoid overfeeding, because uneaten feed decays in the pond, consumes dissolved oxygen, and produces ammonia. These three goals often conflict. A feeding rate that maximizes growth may not maximize feed conversion, and a feeding rate that maximizes conversion may leave growth on the table.

The practical answer is not a single perfect number. It is a system of observation, adjustment, and recordkeeping that responds to your specific ponds, fish, and conditions.

Understanding Catfish Digestion and Metabolism

Catfish are poikilotherms, meaning their body temperature follows the surrounding water. This has direct consequences for feeding. Digestion is an enzyme-driven process, and enzyme activity increases with temperature up to a point. At 60 degrees Fahrenheit (15 degrees Celsius), a catfish digests feed slowly and may take several days to pass a meal. At 80 degrees Fahrenheit (27 degrees Celsius), digestion is rapid and the fish can process multiple meals per day.

Water temperature is the single most important factor in determining how much and how often to feed. Below 50 degrees Fahrenheit (10 degrees Celsius), most catfish stop feeding entirely. Between 50 and 60 degrees Fahrenheit (10 to 15 degrees Celsius), fish will eat small amounts but growth is minimal. The ideal feeding window is 75 to 85 degrees Fahrenheit (24 to 29 degrees Celsius), when feed conversion is most efficient and growth rates peak.

Oxygen levels interact with temperature. Warm water holds less dissolved oxygen than cool water, and feeding increases oxygen demand as fish digest their meal. This is why the classic advice is to feed early in the morning or late in the afternoon, before the daily oxygen peak and before the water temperature reaches its maximum. Feeding during the hottest part of the day stresses fish and reduces feed intake.

Calculating Catfish Feed Rates

The standard method for calculating feed rate is a percentage of body weight. You estimate the total weight of fish in your pond, then apply a percentage that matches their size and the water temperature.

The formula is simple:

Total pond fish weight x feeding percentage = daily feed amount

For example, if you estimate 10,000 pounds of fish in a pond and you are feeding at 2 percent of body weight, the daily ration is 200 pounds of feed.

Estimating Fish Weight

You cannot weigh every fish in a pond, so you need a sampling system. The standard approach is to seine a small portion of the pond, weigh a sample of 30 to 50 fish individually, and calculate the average weight per fish. Multiply that average by your estimate of total fish numbers in the pond.

Total fish numbers come from your stocking records adjusted for expected mortality. If you stocked 5,000 fingerlings and expect 10 percent mortality, your surviving population is approximately 4,500 fish. If your sample shows an average weight of 0.5 pounds per fish, the total pond biomass is about 2,250 pounds.

Sample every 2 to 4 weeks during the growing season. More frequent sampling gives you better data but stresses fish. Once per month is adequate for most operations.

Feed Rate by Fish Size

Fingerlings and small fish have higher metabolic rates per unit of body weight than larger fish. They need a higher percentage of their body weight in feed each day.

These ranges assume water temperatures in the optimal 75 to 85 degree Fahrenheit window. Reduce rates by 25 to 50 percent when water temperatures drop to 60 to 70 degrees Fahrenheit (15 to 21 degrees Celsius).

Feed Rate by Water Temperature

Temperature adjustments matter more than size adjustments in many cases. A 2 percent feed rate at 80 degrees Fahrenheit may need to drop to 0.5 percent at 60 degrees Fahrenheit.

How Often to Feed Catfish

Feeding frequency depends on fish size, water temperature, and your production goals. There is no single correct answer, but there are well-tested patterns.

Fry and Early Fingerlings

Fry have small stomachs and high energy demands. They need feed available throughout the day. In hatchery settings, fry are often fed 6 to 8 times per day in the first week, tapering to 3 to 4 times per day by week two. As fry grow into fingerlings, feeding frequency drops to 2 to 3 times per day.

Fingerlings and Stockers

Fingerlings from 10 to 50 grams do well on 2 feedings per day. This allows them to process two meals fully while still getting enough total feed to support rapid growth. Some operations feed 3 times per day during peak summer growth, but the improvement over twice daily feeding is often small.

Food Fish

Once fish reach 200 grams or larger, once daily feeding is standard in commercial pond production. A single daily feeding at 1 to 3 percent of body weight supports good growth and simplifies management. Some producers split the daily ration into two feedings during the hottest months to reduce oxygen demand after each meal.

The tradeoff is simple. More frequent feedings spread the oxygen demand across the day, which can help in ponds with marginal oxygen levels. But each feeding disturbs the fish and requires labor. For most food fish operations, once daily feeding is the right balance.

Time of Day

Feed when water temperature is moderate and oxygen is rising. Early morning, just after sunrise, is a common choice. Late afternoon, after the hottest part of the day, is another option. Avoid feeding in the middle of the day during summer when water temperatures are highest and oxygen is already declining.

Be consistent. Catfish learn feeding times and will gather at the feeding area when they expect feed. A consistent schedule improves feed intake and makes it easier to spot fish that are not feeding normally.

How to Feed Catfish

Feeding Method

Feed can be distributed by hand, from a boat, or with an automated feeder. The method matters less than the consistency of distribution. Feed should be spread over a broad area so that dominant fish do not monopolize the feed and smaller fish get their share.

For small ponds, hand feeding from the bank or a small boat works well. For larger ponds, a mechanical feeder mounted on a boat or a stationary blower feeder is more efficient. Automated feeders on a timer can deliver feed at set times, but you still need to observe feeding behavior daily.

Feed Type and Form

Catfish feed comes in floating and sinking forms. Floating feed is preferred for most operations because it lets you observe feeding activity directly. If fish stop coming to the surface, you know immediately that something is wrong. Floating feed also allows you to estimate consumption by watching how much remains on the surface after the feeding period.

Sinking feed is used in some cage operations and for very small fry that cannot easily reach the surface. The disadvantage is that you cannot see how much is being eaten, which makes overfeeding more likely.

Feed formulations vary by fish size. Fry and small fingerlings need higher protein feeds, typically 35 to 40 percent protein. Larger food fish do well on 28 to 32 percent protein feeds. Use a feed size appropriate for your fish. Feed that is too large will be ignored, and feed that is too small will be wasted.

Feeding Technique

The standard technique for feeding floating feed is to distribute it slowly so that fish can consume it as it lands. Dumping the entire ration at once causes feed to drift away before fish can eat it, especially in windy conditions or when fish are not actively feeding.

Watch the fish as you feed. Active feeding looks like a boil of fish at the surface, with fish pushing and splashing for the feed. As fish become full, feeding activity slows. When you see fish losing interest and feed beginning to float uneaten, you have reached the practical feeding limit for that day.

Monitoring Catfish Feed Intake

The 20 to 30 Minute Rule

The most practical monitoring tool is the feeding check. After you distribute feed, watch the feeding area for 20 to 30 minutes. If all feed is consumed within that window, the fish could have eaten more. Increase the next day's ration by 5 to 10 percent. If feed remains on the surface after 30 minutes, you have overfed. Reduce the next day's ration by 5 to 10 percent.

This simple adjustment system keeps your feeding rate close to optimal without requiring complex calculations. It works because catfish are consistent eaters when conditions are stable. Changes in appetite are usually the first sign of a problem, and the daily feeding check catches those changes early.

Signs of Overfeeding

Uneaten feed floating on the surface is the most obvious sign. Other signs include:

• Feed accumulating on the pond bottom (visible in clear water)
• Increased ammonia and nitrite levels in water tests
• Excessive algae growth from nutrient loading
• Fish becoming lethargic after feeding
• Poor feed conversion at harvest

Overfeeding is costly in two ways. You waste feed that you paid for, and the uneaten feed degrades water quality. Decomposing feed consumes oxygen and releases ammonia, creating a cycle of poor conditions that reduces fish appetite further.

Signs of Underfeeding

Underfeeding is harder to spot because the water may look fine and fish may appear healthy. Watch for:

• Fish that are aggressive at feeding time but stop eating quickly
• Slow growth between samples
• Fish that are thin or have shrunken bellies
• Cannibalism in fingerling ponds
• Uneven size distribution at harvest

Underfeeding wastes the fixed costs of your pond, labor, and equipment. The fish grow slowly, and you may miss your target harvest window.

Adjusting the Daily Ration

The daily ration is not a fixed number. It changes with temperature, oxygen, fish health, and feed quality. Build a routine of daily adjustment based on observations.

Start each day with the previous day's ration as your baseline. Check the morning oxygen level if you have a meter. If oxygen is above 5 parts per million, feed the full ration. If oxygen is 3 to 5 parts per million, feed half the ration. If oxygen is below 3 parts per million, do not feed and investigate the cause.

During the feeding check, adjust upward or downward based on how quickly the fish consumed the feed. Keep a daily log so you can see trends over time.

Feed Conversion Ratio and Growth Monitoring

Feed conversion ratio (FCR) is the pounds of feed required to produce one pound of fish weight gain. It is the single most useful metric for evaluating your feeding program.

The formula is:

FCR = total feed fed divided by total weight gain

For example, if you feed 10,000 pounds of feed and your fish gain 5,000 pounds, your FCR is 2.0.

A good FCR for catfish is 1.5 to 2.0. An FCR above 2.2 suggests feed is being wasted, fish are not healthy, or water quality is limiting growth. An FCR below 1.5 is possible with excellent conditions but is not typical in pond production.

To calculate FCR, you need accurate feed records and accurate weight gain data. Weigh a sample of fish at stocking and at each sampling event. Track total feed delivered to the pond. At harvest, use the total weight of fish removed.

FCR is a lagging indicator. It tells you what happened over weeks or months, not what is happening today. Use it to evaluate your overall program, not to make daily adjustments.

Growth Targets

Growth rates vary with stocking density, water temperature, and feed quality. As a general guide, food fish in the 0.2 to 1.5 pound range should gain 0.02 to 0.05 pounds per day during the growing season. A fish stocked at 0.2 pounds in the spring should reach 1.5 to 2.0 pounds by fall if feeding is adequate.

If your fish are gaining less than 0.02 pounds per day, check your feed rate, water quality, and fish health. The problem may be that fish are not eating enough, or that the feed they eat is not being converted to growth.

Feeding in Different Production Systems

Pond Production

Pond production is the most common catfish system in the United States. Fish are stocked at densities of 4,000 to 8,000 per acre in traditional ponds, though some intensive systems stock higher. Feeding is typically once daily from a boat or bank feeder.

The key to pond feeding is matching the ration to what the pond can support. Ponds have a natural carrying capacity based on oxygen, water exchange, and waste removal. Overfeeding pushes the pond past its capacity and causes water quality problems.

Cage and Raceway Production

Cage and raceway systems have higher water exchange and can support higher feeding rates per unit of volume. Stocking densities are much higher, and feeding rates are calculated per cage or per raceway based on fish biomass.

In cages, sinking feed is often used because floating feed can be carried away by current. Feeding frequency may be 2 to 3 times per day because fish cannot forage on natural pond organisms and depend entirely on formulated feed.

Split Pond and Intensively Aerated Systems

Split pond and intensively aerated systems use continuous aeration to support higher feeding rates. These systems can achieve FCRs below 1.8 and growth rates above traditional ponds. Feeding frequency is often 2 times per day during peak season.

The higher capital cost of these systems is offset by higher production per acre. If you are considering one of these systems, expect to spend more time on daily monitoring because the margin for error is smaller.

Seasonal Feeding Strategies

Spring

As water temperatures rise above 55 degrees Fahrenheit (13 degrees Celsius), fish begin to feed. Start with small amounts, no more than 0.5 percent of body weight, and increase gradually as fish show active feeding behavior. Spring feeding is a transition period. Fish that have not eaten for months need time to rebuild their digestive capacity.

Summer

Summer is the main growing season. Feed at full ration and monitor closely for oxygen problems. Hot weather brings the highest growth rates and the highest risk of overfeeding. Check oxygen levels regularly, especially in the early morning when oxygen is at its daily minimum.

Fall

As water cools below 70 degrees Fahrenheit (21 degrees Celsius), reduce feeding rates. Fish will continue to eat but will convert feed less efficiently. Some producers continue feeding into fall to add weight before harvest, but the cost per pound of gain rises as temperatures drop.

Winter

Below 50 degrees Fahrenheit (10 degrees Celsius), stop feeding. Fish can survive the winter without feed, and feeding at low temperatures wastes feed and pollutes the water. In mild climates where water temperatures stay above 50 degrees, you can feed small amounts on warm days if fish are actively feeding.

Water Quality and Feeding

Feed is the main source of nutrients entering a catfish pond. Every pound of feed adds nitrogen and phosphorus to the water. This drives algae growth, which produces oxygen during the day but consumes oxygen at night. The daily oxygen cycle in a catfish pond is driven largely by the feeding program.

Dissolved Oxygen

The most critical water quality parameter for feeding decisions is dissolved oxygen. Catfish need at least 3 parts per million of dissolved oxygen to feed actively. Below that, they stop eating and may become stressed.

Check oxygen levels before feeding, especially in summer. If oxygen is below 5 parts per million in the early morning, reduce the feeding rate for that day. If oxygen is below 3 parts per million, do not feed and run aeration if available.

Ammonia and Nitrite

Uneaten feed and fish waste produce ammonia, which is toxic to fish at high levels. Ammonia is converted to nitrite by bacteria, and nitrite interferes with the fish's ability to carry oxygen in the blood. High nitrite levels cause brown blood disease and can be fatal.

Test ammonia and nitrite weekly during the feeding season. If ammonia or nitrite levels rise, reduce feeding until water quality improves. A sudden drop in feed intake is often the first sign of a water quality problem.

Turbidity and Phytoplankton

Feed drives algae growth, which affects water clarity. A healthy catfish pond has moderate algae that produces oxygen and provides natural food for fish. Excessive algae causes wide oxygen swings and can lead to off-flavor in harvested fish.

If your pond becomes too clear, algae may crash and oxygen levels will drop. If the pond becomes too green, oxygen may be extremely high in the afternoon and extremely low in the early morning. Both conditions require feeding adjustments.

Common Feeding Mistakes

Feeding on a Fixed Schedule Without Observation

The most common mistake is feeding the same amount every day without watching how fish respond. Feed rates must be adjusted daily based on temperature, oxygen, and fish behavior. A fixed schedule ignores the conditions that determine whether fish will eat.

Feeding Too Much Early in the Season

After winter, fish are eager to eat and may consume large amounts of feed. But their digestive systems are not ready for full rations. Overfeeding in early spring causes feed waste and water quality problems that persist through the season.

Ignoring Oxygen Readings

Some producers feed first and check oxygen later. This is backwards. Oxygen should be checked before feeding, and the feeding decision should be based on the reading. Feeding when oxygen is low stresses fish and wastes feed.

Using the Wrong Feed Size

Feed that is too large for fingerlings will not be consumed. Feed that is too small for large fish is eaten but wastes energy as fish work harder to capture enough particles. Match feed size to fish size and check that fish are actually consuming the feed you offer.

Not Keeping Records

Feeding without records is guessing. You cannot calculate FCR, track growth, or identify problems without data. A simple notebook or spreadsheet with daily feed amounts, water temperature, oxygen readings, and observations is enough to transform your feeding program.

Recordkeeping for Feed Management

Good records do not need to be elaborate. A spiral notebook or a simple spreadsheet works. The key is consistency and completeness.

Daily Records

Record the following each day:

• Date and time of feeding
• Pond or cage identification
• Feed type and amount
• Water temperature
• Dissolved oxygen before feeding
• Weather conditions
• Fish feeding behavior (aggressive, normal, slow, no interest)
• Feed remaining after 30 minutes
• Any unusual observations

Weekly Records

• Average fish weight from samples
• Estimated total pond biomass
• Ammonia and nitrite levels
• Water visibility or secchi disk reading
• Any disease signs or mortalities

Seasonal Records

• Total feed fed per pond
• Total weight harvested per pond
• Feed conversion ratio per pond
• Stocking and harvest dates
• Mortality rates

These records let you compare performance across ponds and across years. They also help you identify problems early. A pond that suddenly stops eating may have a disease outbreak, an oxygen problem, or a feed quality issue. Your records tell you when the change happened and what conditions were present.

When to Call a Veterinarian or Extension Agent

Most feeding problems are management problems that you can solve by adjusting your practices. Some problems require professional help.

Contact a veterinarian or extension agent if you observe any of the following:

Sudden Drop in Feed Intake

If fish that were feeding aggressively suddenly stop eating over the course of a day or two, there may be a disease outbreak. Bacterial infections such as columnaris and enteric septicemia of catfish often cause a loss of appetite before other signs appear.

Unusual Mortality

A few dead fish are normal in any pond. A sudden increase in mortality, especially if it continues for more than a day, warrants professional investigation. Collect fresh dead or moribund fish and take them to a diagnostic laboratory.

Visible Disease Signs

Look for external signs such as red spots, ulcers, frayed fins, or white patches on the skin or gills. Fish that swim erratically or hang at the surface may be diseased or suffering from oxygen stress that you have not detected.

Water Quality Problems You Cannot Solve

If ammonia or nitrite levels remain high despite reduced feeding, or if oxygen levels are consistently low, you need help identifying the cause. A professional can test your water, examine your pond, and recommend corrective actions.

Poor Growth or Feed Conversion

If your FCR is consistently above 2.2 or your fish are not gaining weight at expected rates, a professional can help identify whether the problem is nutritional, environmental, or disease related.

Your veterinarian or extension agent can also help with feed formulation, stocking density recommendations, and pond management planning. They are a resource for prevention as much as for treatment.

Developing a Feeding Plan for Your Operation

A written feeding plan turns your knowledge into a repeatable system. The plan should cover the full production cycle.

Step 1: Set Your Production Goals

Determine your target harvest weight and your target harvest date. This sets the growth rate you need to achieve. Work backward from the target to determine stocking weight and the feeding program needed to reach your goal.

Step 2: Establish Baseline Conditions

Before the season starts, test your water and note the condition of your ponds. Know your water source, your aeration capacity, and your pond depth. These factors determine how much feed your ponds can support.

Step 3: Create a Feeding Schedule

Build a calendar that shows feeding rates by month based on typical water temperatures for your region. This is your starting point. Actual feeding rates will vary based on daily conditions, but the calendar gives you a framework.

Step 4: Set Up Your Monitoring System

Decide when you will sample fish, what water quality tests you will run, and how you will record data. Assign responsibility for daily feeding observations and weekly sampling.

Step 5: Plan for Problems

Write down what you will do if oxygen drops, if ammonia rises, or if fish stop eating. Having a plan in advance prevents panic decisions that make problems worse.

Step 6: Review and Adjust

At the end of each season, review your records. Calculate FCR for each pond. Compare growth rates to your targets. Identify what worked and what did not. Use this information to improve next season's plan.

Advanced Feeding Strategies

Demand Feeding

Demand feeders allow fish to trigger feed delivery by striking a rod or paddle. These systems work well in some cage and tank operations but are less common in ponds because fish may not learn to use them effectively, and they do not allow daily observation of feeding behavior.

Restricted Feeding

Restricting feed to 80 to 90 percent of what fish will eat can improve FCR and reduce water quality problems. The tradeoff is slightly slower growth. This strategy works best when market prices are low and feed costs are high.

Compensatory Growth

Fish that experience a period of restricted feeding often grow faster when full feeding resumes. Some producers use this to manage feed costs during periods of low prices or poor water quality. The strategy requires careful monitoring to avoid excessive weight loss during the restriction period.

Phase Feeding

Phase feeding means adjusting feed protein levels as fish grow. Starter feeds with 35 to 40 percent protein are used for fry and small fingerlings. Grower feeds with 32 percent protein are used for stockers. Finisher feeds with 28 percent protein are used for food fish approaching harvest. This reduces feed costs because protein is the most expensive component of feed.

Feed Storage and Quality

Feed quality affects feed intake and fish growth. Poor quality feed is a common but overlooked cause of feeding problems.

Store feed in a cool, dry place. Heat and humidity cause feed to spoil, lose vitamins, and develop mold. Use feed within 4 to 6 weeks of delivery when possible. Rotate stock so that older feed is used first.

Check feed for signs of spoilage before feeding. Feed that smells musty, has visible mold, or contains clumps should not be fed. Spoiled feed can cause disease and poor growth.

Feed pellets should be intact and uniform in size. Broken pellets and fines are wasted because fish cannot eat them efficiently. If your feed arrives with excessive fines, discuss the problem with your feed supplier.

Economic Considerations

Feed is your largest variable cost, so small improvements in FCR have a large impact on profit. A 0.1 improvement in FCR on a 100,000 pound harvest saves approximately 10,000 pounds of feed. At $400 per ton, that is $2,000.

The cheapest feed is not always the most economical. Lower quality feed may have a lower price per ton but a higher FCR, resulting in higher cost per pound of gain. Compare feeds on cost per pound of gain, not cost per ton.

Feed prices fluctuate with commodity markets. Corn and soybean meal are the main ingredients in catfish feed, and their prices drive feed costs. Consider locking in feed prices when commodity prices are favorable.

Environmental Stewardship

Feeding management has environmental consequences beyond your pond. Excess nutrients in discharge water can affect downstream waterways. Most commercial catfish operations use ponds that retain water and do not discharge regularly, but heavy rains can cause overflow.

Minimize nutrient loss by feeding accurately, maintaining healthy ponds, and managing water levels. Check with your local extension office about regulations that apply to your operation.

Frequently Asked Questions

How much should I feed my catfish each day?

Feed 1 to 3 percent of total fish body weight per day for food fish, and 3 to 5 percent for fingerlings, when water temperature is in the optimal range of 75 to 85 degrees Fahrenheit. Adjust daily based on observed feed consumption. If fish clean up all feed within 20 to 30 minutes, increase the ration slightly. If feed remains after 30 minutes, decrease the ration.

How many times a day should I feed catfish?

Fry need 4 to 8 feedings per day. Fingerlings do well on 2 feedings per day. Food fish over 200 grams can be fed once daily. Some producers split the daily ration into 2 feedings during hot weather to reduce oxygen demand after each meal.

What is the best time of day to feed catfish?

Early morning just after sunrise or late afternoon before the hottest part of the day are the best times. Feed when water temperature is moderate and oxygen is rising. Avoid feeding in the middle of the day during summer when water is warmest and oxygen is declining.

How can I tell if I am overfeeding my catfish?

Feed remaining on the surface 30 minutes after feeding is the clearest sign. Other signs include rising ammonia and nitrite levels, excessive algae growth, and fish becoming lethargic after feeding. If you see these signs, reduce the daily ration by 10 percent and monitor.

What water temperature should I stop feeding catfish?

Stop feeding when water temperature drops below 50 degrees Fahrenheit (10 degrees Celsius). Between 50 and 60 degrees Fahrenheit, feed only small amounts if fish are actively eating. Growth is minimal at these temperatures, and uneaten feed pollutes the water.

How do I calculate how much feed my catfish need?

Estimate the total weight of fish in your pond by sampling 30 to 50 fish and calculating average weight per fish. Multiply by your estimated number of surviving fish. Then apply the feeding percentage for your fish size and water temperature. For example, 10,000 pounds of fish at 2 percent equals 200 pounds of feed per day.

What is a good feed conversion ratio for catfish?

A good FCR is 1.5 to 2.0 pounds of feed per pound of gain. An FCR above 2.2 suggests feed waste, disease, or poor water quality. An FCR below 1.5 is excellent but uncommon in pond production.

My catfish have stopped eating. What should I do?

Check dissolved oxygen first. If oxygen is below 3 parts per million, do not feed and run aeration if available. Check water temperature and ammonia levels. Look for signs of disease such as red spots, frayed fins, or erratic swimming. If fish do not resume feeding within a day or two, contact a veterinarian or extension agent.

Related Farming Guides

Additional guides on catfish health, pond management, water quality testing, and harvest preparation will appear here. These resources expand on the topics introduced in this guide and provide practical support for your catfish operation.

Related Clinical & Scientific Guides

• Pond Sediment Management and Dredging Options
• Indoor Aquaculture Facilities: Lighting and Insulation
• Greenhouse Aquaculture: Extending Growing Seasons

References

• FAO Fisheries and Aquaculture: https://www.fao.org/fishery/en
• USDA Aquaculture: https://www.usda.gov/topics/farming/aquaculture
• WOAH Aquatic Animal Health Code: https://www.woah.org/en/what-we-do/standards/codes-and-manuals/aquatic-code-online-access/
• FAO Animal Production and Health: https://www.fao.org/animal-production/en/
• WOAH (World Organisation for Animal Health): https://www.woah.org/en/home/

This article is educational and is not a substitute for veterinary diagnosis, treatment, public-health guidance, or regulatory reporting.