The redcap fantail goldfish has a rounded, egg-like body with wide head and split caudal fin. It has totally white body with red circle on their head directly above the eyes which make it one of the most popular choices among pet fish lovers. It has normal eyes which do not develop until the fish is 6 months old. Fins are less developed and the anal and caudal fins are well divided into two matching halves which give the tail a triangle shape when it is viewed from the above. It is omnivorous and in wild condition it mainly feeds on plants, insects such as mosquito larvae, small crustaceans, zooplankton, benthic invertebrates and detritus. In captive condition it generally eats all kinds of fresh, frozen and flake foods, live or frozen brine shrimp, blood worms, Daphnia, Tubifex and krill. It also accepts vegetables like peas, cucumber, leafy greens like collards and kale. It is an egg layer and the mature female can produce up to 10,000 eggs. It grows up to 15.24 cm in length and can live up to 20 years or more.