Until 1951, this species was mixed with Apistogramma borelli; was also known as Apistogramma. The fish got its specific epithet due to the characteristic elongated and curved back like a tuft of a cockatoo parrot anterior rays of the dorsal fin. The species is known from the western part of the Amazon Basin within Peru, Brazil and Colombia.
Apistogram of medium size with a rather powerful physique. The body length of males reaches 8-12 cm, females – about 5-7 cm.
A characteristic feature, in addition to the shape of the dorsal fin, is a massive lower jaw, somewhat spoiling, in my opinion, the overall impression of the fish.
Kakadu is the simplest of all the other types of apistograms, and therefore ideal for novice fans. It lives and reproduces without problems in soft and hard water with a temperature of 24-27 ºС and a pH value of 6-8. The minimum volume suitable for the content of this apistogram should be 60 liters. for a couple. “Territorial disputes” of males, as a rule, do not take such a serious turn as in A. agassizii.
Usually, an adult male occupies a shelter in which most of the time is located, swimming only at the time of feeding.
The species is very peaceful with respect to other fish (although large specimens can be eaten by neonchik), and in the general aquarium “there is a bit” by more agile neighbors, who often push several cockatoo phlegmatic ones away from the trough.
The cockatoo apistogram is extremely easy to divorce and does not require any special spawning preparations. About 80 eggs are deposited inside the shelter. Calf and offspring are guarded only by the female, which at this period acquires a yellow “maternal” color.
The male is engaged in the protection of the territory. The larvae hatch after 2-3 days, and after another 4-5 days the fry already swim independently in search of food.
From this point on, they should be fed with rotifers, nauglias of artemia, or “Micro-Min” type dry food. With age, fry are transferred to feed of the appropriate size.
Almost all types of feed are eaten with pleasure, but adults still prefer live food.