Work out fish feed quantity instantly with clear inputs, formula shown and shareable results.
Daily feed is a percentage of the standing biomass, split across feedings; expected growth divides the total feed by a feed conversion ratio of 1.5. Feeding by biomass percentage keeps rations right as fish grow, and overfeeding is the main driver of ammonia spikes in a closed system.
Daily ration
grams per day = biomass in grams x feed rate percentage
Growth estimate
growth kg = total feed kg / feed conversion ratio
grams per day = biomass in grams x feed rate percentage. Daily feed is a percentage of the standing biomass, split across feedings; expected growth divides the total feed by a feed conversion ratio of 1.5.
Feeding by biomass percentage keeps rations right as fish grow, and overfeeding is the main driver of ammonia spikes in a closed system.
Enter total fish biomass, feed rate as % of biomass per day, feedings per day, period to plan for. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.