Fish Food Calculator: How Much Should I Feed My Fish?

🐟 Fish Food Calculator

Calculate the exact daily & weekly feeding amounts for your aquarium based on fish type, count, and weight

Quick Presets
📏 Tank Setup
🐟 Fish Details
🍞 Food & Settings
📊 Feeding Results
📊 Food Type Reference Data
Flake Food
2-3%
% body wt / day
Micro Pellets
2-3%
% body wt / day
Large Pellets
1-2%
% body wt / day
Algae Wafers
1-2%
% body wt / day
Freeze-Dried
1-2%
% body wt / day
Gel / Paste
3-4%
% body wt / day
Live / Frozen
3-5%
% body wt / day
Fry Food
5-8%
% body wt / day
🐟 Feeding Rates by Fish Type
Fish Type % Body Wt / Day Feeds / Day Recommended Food Notes
Tropical (General)2–3%2xFlake / Micro PelletSmall amounts, 2-min rule
Betta Fish3–5%2xPellet / Freeze-DriedTiny portions only
Goldfish1–2%2–3xPellet / FlakeVery greedy; prone to overfeeding
Cichlid1–2%2xLarge PelletProtein-rich diet preferred
Shrimp2–4%1–2xAlgae Wafer / PowderEvery other day for planted tanks
Reef / Marine1–2%2xMarine Pellet / FlakeSupplement with live food
Discus3–5%3xGel / Freeze-DriedSensitive; high protein needed
Pleco / Catfish1–2%1xAlgae Wafer / SinkingFeed at night; sinking food only
Fry (Baby Fish)5–8%4–6xPowdered / InfusoriaMultiple small feedings per day
📦 Common Tank Sizes Reference
Tank Name Dimensions (L x W x H in) Volume (gal) Volume (L)
Nano Cube 512 x 12 x 12519
10 Gallon20 x 10 x 121038
20 Gallon Long30 x 12 x 122076
29 Gallon30 x 12 x 1829110
40 Gallon Breeder36 x 18 x 1640151
55 Gallon48 x 13 x 2155208
75 Gallon48 x 18 x 2175284
125 Gallon72 x 18 x 22125473
📋 Weekly & Monthly Food Estimates
Daily Amount Per Week Per Month Per Year
0.1g (0.004oz)0.7g3g36.5g
0.5g (0.02oz)3.5g15g182.5g
1g (0.035oz)7g30g365g
2g (0.07oz)14g60g730g
5g (0.18oz)35g150g1,825g
10g (0.35oz)70g300g3,650g
💡 The 2-Minute Rule: Feed only as much as your fish can consume within 2 minutes. Remove any uneaten food immediately to prevent ammonia spikes. Overfeeding is the #1 cause of poor water quality in aquariums.
⚖ Body Weight Method: The most accurate way to calculate fish food is by total fish biomass. Measure or estimate the average weight of your fish, multiply by the number of fish, then apply the recommended percentage (typically 2–3% of total body weight per day). Fasting one day per week promotes healthy digestion.

Election of good Fish Food for fishes commonly confuses folks. Here are many brands and kinds, but different ideas about what best works. Big part of the cause is strip food, that gives everything needed and helps good health while it stays easy for digestion.

A quiet aquarium benefits from quality Fish Food because it reduces the waste.

How to Choose Fish Food

Fishes split into plant-eating, all-eating and meat-eating species. Main needs range according to every group. Fish Food is meant to match that demand and sometimes add colors for more vivid look.

The label shows the first ingredient, that has big weight. For meat-eating fishes the answer is meat or for plant-eating ones vegetables, but a genuinely good mix reduces the need to search for the ideal one.

Brands of dry foods, for instance New Life Spectrum and Northfin, stand out because they do not depend on grains and their leftovers. Northfin beats many rivals in ingredients, so it deserves the a bit higher price. Fluval Bug Bites well serves as everyday meal each second day.

Hikari ranks among favorites, because fishes commonly seem to love it very much. Omega One convinces especially the veggie pills and flakes for plant-eating fishes.

Frozen foods form an entirely other group. Hikari, Omega One and San Francisco Bay answer for frozen or freeze-dried kinds. Frozen bloodworms please many fishes, although they cost more then flakes or brine shrimps for nutrition.

Frozen brine shrimps, mysis shrimps, daphnia, glassworms and copepods all answer as extra parts in the everyday menu.

Some fish keepers favor making homemade food at home. A common method is to mix tuna, salmon, peas, kale and spirulina with gelatin. For more color one can add pepper.

Plecos and shrimps like wet vegetables, such as zucchini, spinach, green beans and squash.

Goldfish have their own separate tastes. Some of them genuinely favor Tetra lagoflakes above all others. Pellets for goldfish, that float and keep form, are useful because they sink slowly while they get wet.

Koi fishes well accept Tetra feed, occasionally also Hikari.

For tiny fishes, like neon tetras or rasboras, micro pellets prove to be very good. Spirulina flakes form another solid choice. Cichlid keepers usually choose special cichlid flakes, and some mixes carry even garlic.

Live foods, like white worms or grindal worms, can be used, but not all fishes get excited about them. The main point stays diversity. Combining dry, frozen and freshfoods helps to keep healthy and happy fishes.

Fish Food Calculator: How Much Should I Feed My Fish?

Author

  • Ronan Granger

    Hi, I am Ronan Granger, the owner of AquaJocund.com! At AquaJocund, I’m thrilled to take you on a captivating and immersive journey through the wondrous realm of aquariums and aquatic life.

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