- Reviewed by: AgriFarming Editorial Team
- Topic: Fish Feeding Guide & Daily Feed Calculation
- Experience: Aquaculture research & fish farming management practices
- Last updated: March 2026
- Fact-checked by: AgriFarming Aquaculture Experts
How much feed should I give my fish per day? This is one of the most common questions in fish farming. Feeding too much increases costs and pollutes pond water, while feeding too little slows fish growth and delays harvest.
The correct daily fish feed requirement depends on three main factors:
- Total fish biomass
- Fish species
- Standard feeding rate percentage
Using the correct fish feeding calculation helps farmers reduce feed waste, improve fish growth, and increase profits.
Use the fish feeding calculator below to calculate daily fish feed quantity, total feed requirement, and feeding cost based on your fish count and average weight.
Quick Fish Feeding Answer
Most fish should be fed 1–5% of their body weight per day depending on fish size and species.
Quick feeding guide:
| Fish size | Feeding rate |
|---|---|
| Fry (below 10g) | 8–10% body weight/day |
| Fingerlings (10–50g) | 5–8% body weight/day |
| Juveniles (50–200g) | 3–5% body weight/day |
| Grow-out fish (200–500g) | 2–3% body weight/day |
| Market size (500g+) | 1–2% body weight/day |
For best growth:
- Feed 2–3 times daily
- Recalculate feed every 30 days
- Adjust feed based on temperature and fish activity
Fish Feeding Calculator (Daily Feed Requirement Tool)
Fish Feed Calculator
Calculate daily & total fish feed requirements for your pond
About This Fish Feed Calculator
The Fish Feed Calculator determines daily and total feed quantities for aquaculture ponds, tanks, or cages based on total fish biomass and the recommended feeding rate (% of body weight per day). Overfeeding is the most common cause of water quality deterioration and disease outbreaks in aquaculture; underfeeding stunts growth and extends production cycles.
Formula Used
Daily Feed (kg) = Total Biomass (kg) × Feeding Rate (%) ÷ 100. Total Biomass = Average Fish Weight (g) × Number of Fish ÷ 1,000. Feeding Rate is typically 2–5% of body weight for most species, declining as fish grow larger.
Usage Tip
Feed in multiple small meals (3–4 times daily) rather than one large feeding — this improves feed conversion efficiency, reduces uneaten feed settling on the pond bottom, and maintains more stable dissolved oxygen levels.
Use this fish feeding calculator to calculate daily fish feed requirement, fish biomass, total feed needed, number of feed bags required, and feeding cost instantly. This calculator uses the standard biomass feeding formula used in commercial aquaculture.
How to Calculate Daily Fish Feed Requirement
The standard method used in aquaculture is the body weight method. Daily fish feeding quantity is calculated as a percentage of the total fish biomass.
Step 1 — Calculate Fish Biomass
Fish biomass is the total combined weight of fish in your pond.
Formula:
Fish biomass = Number of fish × Average weight (kg)
Example:
1000 fish × 0.25 kg = 250 kg biomass
Step 2 — Calculate Daily Fish Feed
Daily feed requirement is calculated using feeding rate percentage.
Formula:
Daily feed = Biomass × Feeding rate (%) ÷ 100
Example:
250 kg × 3% = 7.5 kg feed per day
Step 3 — Calculate Total Feed Requirement
Total feed depends on feeding duration.
Formula:
Total feed = Daily feed × Number of days
Example:
7.5 kg × 30 days = 225 kg total feed
This is the same fish feed calculation method used by fisheries departments and commercial fish farms.
Daily Fish Feed Calculation Example
Here are practical examples used in Indian fish farming:
Example 1 — Rohu pond (5000 fish at 250g)
Biomass = 1,250 kg
Feed rate = 3%
Daily feed = 37.5 kg
Monthly feed = 1,125 kg
Feed bags needed = 23 bags (50 kg)
Example 2 — Tilapia tank (1000 fish at 200g)
Biomass = 200 kg
Feed rate = 3.5%
Daily feed = 7 kg
Monthly feed = 210 kg
Example 3 — Catla pond (3000 fish at 400g)
Biomass = 1,200 kg
Feed rate = 2.5%
Daily feed = 30 kg
Monthly feed = 900 kg
Use the calculator above to calculate your exact daily fish feeding requirement.
Fish Feeding Rate Chart by Species
| Species | Feed Rate (% body weight/day) | Feed type |
|---|---|---|
| Rohu | 3% | Pelleted feed |
| Catla | 2.5% | Floating pellets |
| Common Carp | 3% | Sinking pellets |
| Tilapia | 3.5% | High-protein pellets |
| Pangasius | 3% | Commercial pellets |
| Channel Catfish | 2.5% | Sinking feed |
| Trout | 2% | High-protein feed |
| Salmon | 1.5% | Premium feed |
| Shrimp | 5% | Broadcast feed |
If your species is not listed, use the custom feeding rate option in the calculator.
Fish Feeding Rate Chart by Body Weight
Fish feeding rate decreases as fish grow larger.
| Average fish weight | Recommended feeding rate |
|---|---|
| Below 10g | 8–10% |
| 10–50g | 5–8% |
| 50–200g | 3–5% |
| 200–500g | 2–3% |
| Above 500g | 1.5–2% |
Always recalculate fish feeding quantity every month.
How Many Times Should Fish Be Fed Per Day?
Fish should be fed 2–3 times daily instead of one large feeding.
Recommended feeding schedule:
- Morning: 6–8 AM
- Evening: 4–6 PM
- Optional midday feeding in intensive systems
Shrimp should be fed 3–4 times daily.
Benefits of split feeding:
- Reduces feed wastage
- Improves feed conversion ratio
- Improves fish growth
- Maintains water quality
How Much Feed for 1000 Fish?
Feed requirement depends on fish weight and species.
Examples:
1000 Rohu (300g average)
Biomass = 300 kg
Daily feed = 9 kg
Monthly feed = 270 kg
1000 Tilapia (150g)
Biomass = 150 kg
Daily feed = 5.25 kg
Monthly feed = 157.5 kg
1000 Common Carp (500g)
Biomass = 500 kg
Daily feed = 15 kg
Monthly feed = 450 kg
Use the calculator to get accurate results for your farm.
Factors That Affect Fish Feed Quantity
Water temperature
Fish eat less in cold water. Reduce feeding below 20°C.
Fish growth stage
Small fish require higher feeding rates.
Dissolved oxygen
Stop feeding if oxygen drops below 4 mg/L.
Feed quality
Poor quality feed increases feeding requirement.
Stocking density
High density requires proper feed distribution.
Best Fish Feeding Practices
Follow these best practices for better fish growth:
- Feed at the same time daily
- Monitor fish feeding behaviour
- Remove uneaten feed
- Maintain feeding records
- Adjust feed monthly
- Use feeding trays when possible
Proper feeding management improves farm profitability.
How Much Does Fish Feed Cost?
Feed accounts for 50–70% of total fish farming costs.
Typical feed prices in India:
| Feed type | Price range |
|---|---|
| Carp feed | ₹25–₹55/kg |
| Tilapia feed | ₹30–₹60/kg |
| Shrimp feed | ₹70–₹110/kg |
Use the calculator to estimate your total feeding cost.
Frequently Asked Questions about Fish Feeding
1. What happens if fish are overfed?
Overfeeding increases ammonia levels, reduces oxygen, increases disease risk, and wastes money.
2. How often should fish feed be recalculated?
Every 30 days as fish biomass increases.
3. Can this calculator be used for tanks?
Yes. The formula works for ponds, tanks, cages, and RAS systems.
4. What is a good Feed Conversion Ratio (FCR)?
Tilapia: Good FCR ranges from 1.2 to 1.5
Carp: Good FCR ranges from 2.0 to 2.5
Shrimp: Good FCR ranges from 1.5 to 2.0
Catfish: Good FCR ranges from 1.5 to 2.0
5. What is feeding rate for fish fry?
Fish fry require 8–10% body weight feed daily.
6. What is fish biomass?
Fish biomass is the total fish weight used to calculate feeding quantity.
Related Fish Feeding Guides
- Tilapia fish feed formulation
- Fish feed preparation methods
- Tilapia feeding guide
- Improving fish feed conversion ratio
References
For official aquaculture guidelines and fisheries programs, refer to the Department of Fisheries, Government of India.
Why Trust AgriFarming
This fish feeding guide is based on standard aquaculture feeding practices, fish nutrition principles, and biomass calculation methods commonly used in commercial fish farming.
This content is reviewed by the AgriFarming Editorial Team to ensure accuracy, clarity, and practical usefulness for farmers and aquaculture professionals.
Sources referenced include:
- Aquaculture feed management guidelines
- Fisheries extension recommendations
- Fish nutrition and feeding practice resources
- Commercial fish farming best practices
Last reviewed: March 2026
This content is provided for educational purposes only. Farmers should adjust feeding quantities based on local conditions, water quality, fish species, and advice from local fisheries experts.