Fry
A young fish that has used up its yolk and started feeding itself; in Indian fish farming, the stage after spawn.
Also: hatchling, spawn (in Indian fish farming)
Fry are young fish that have absorbed their yolk sac and begun to feed. Fish farmers in India count stages carefully: freshly hatched spawn are about 5 to 8 mm long, fry grow to roughly 20 to 25 mm in nursery ponds, and fingerlings are reared on before stocking in grow-out ponds. Bengal has a long trade in fish seed, once collected from the rivers in the monsoon and now mostly bred in hatcheries. Aquarists feed fry on tiny live foods such as infusoria and newly hatched brine shrimp.