Overfeeding ornamental fish is easy, and uneaten flakes sink and foul the water, so it helps to measure out a single feeding in advance. Enter how many fish you keep, the daily amount per fish, how many feedings you split it across and how much food is in the container, and this tool gives the daily, per-feeding and seven-day amounts plus how long the container lasts.
The math is daily = fish x food per fish and per feeding = daily / feedings, with the formula used printed below the results. There is no officially published feeding table by species. Figures differ between sources for the same species, and pellet size and calorie density differ between products, so this tool has no species list and asks for the figure on your own food label or reference (as of October 2026).
This tool does not suggest a correct amount for any species, and it does not assess the nutritional balance or calorie content of the food. The container estimate is rounded down, so it reads shorter than reality. This tool is for reference only and does not replace veterinary care. Contact your veterinarian or an aquatic animal hospital right away if your fish refuse food or look abnormally swollen.
Frequently Asked Questions
Use the figure printed on your food container or given in your own reference. There is no official table, so this tool does not supply one.
This tool only works out amounts. Flakes that sink uneaten degrade water quality quickly, so it is better to siphon them out.
It is rounded down and assumes the daily amount never changes. Changing the amount or letting the food absorb moisture will shift it.