Fish stump or polycentrus (Polycentrus schomburgkii) – the only representative of the kind of polycentrus. The natural habitat of the stump fish is the coastal cave of the slow-flowing reservoirs of Trinidad Island (South America). Representatives of this species were brought to Europe in 1907, but they received the greatest distribution in Russia in the 1950s.
In the aquarium fish stumps grow up to 7 centimeters, the females are inferior to the males in size. In fish, the body is short and high, flattened at the sides, a disproportionately large head.
The ventral fins have an elongated shape, the anal and dorsal fin are well developed. The main color of the body is yellowish-brown, blue and black specks are randomly scattered on it, the main color approaching black during spawning.
Obliquely along the body of the fish, there are four transverse bands, on the gill cover you can see 3 dark spots with a light edging. The tail and pectoral fins are colorless, precisely because of this feature the fish gives the impression of being chopped off.
Chipping fish can be kept in a common or species aquarium. Polycentrus are quite sensitive to temperature fluctuations and composition of water, as well as all kinds of chemistry. Temperature range should be 22-25 degrees, when diluted rises to 28-30 degrees.
Stiffness – up to 20, pH – 6.7-7, water to replace small portions.
photo: Chipping fish so called because of the transparent fins
For breeding polycentrus need spawn, a volume of 80 liters. It should be shelters of kryagy, caves, kryagy, vegetation and algae.
Females lay eggs on a leaf or in a cave, after which they need to be planted, the male takes care of the offspring. After 2-3 days, the male can be planted, the fry will need food only after a week, the rotifers or infusoria can serve as starting food. As you grow, sort the offspring to avoid cannibalism.
In an aquarium, fry should be aerated, because at first they are not mobile and it will be easier for them to eat. These fish reach sexual maturity in 11-13 months.
photo: stump fish – predator