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The oscar (Astronotus ocellatus) is a species of fish from the cichlid family known under a variety of common names, including tiger oscar, velvet cichlid, and marble cichlid. [2] In tropical South America, where the species naturally resides, A. ocellatus specimens are often found for sale as a food fish in the local markets.
Image Size Tank size Tank size Temperature range pH range Water Hardness Harlequin rasbora: Trigonostigma heteromorpha: 5 cm (2.0 in) Also known as Harlequin tetra or Harlequin barb. Glowlight rasbora: Trigonostigma hengeli: 5 cm (2.0 in) Red-striped rasbora: Trigonopoma pauciperforata: 7.5 cm (3.0 in) 22–29 °C (72–84 °F) Trigonopoma gracile
The tank has no sharp angles around its sides and keeps the housed animals away from plumbing. Water moving into the tank gives a gentle flow that keeps the inhabitants suspended. Water leaves the tank through a screen which prevents animals from being drawn into the pump intake or overflow line. [citation needed]
The fish is a popular aquarium fish, due to its striking appearance and personable mannerisms. It, like most cichlids, is considered "aggressive", [6] but can get along in a well-populated tank, tending to be more territorial if kept with only a few other fish, therefore allowed to easily establish and defend a "territory" in the tank. Jack ...
Ideal tank mates for convict cichlids consists of robust similar sized fish. Such fish include T-Bar cichlids, Honduran red points, Green Terrors, Salvini, Jack Dempsey, (Keep in mind as Dempseys outgrow the convicts territorial issues will become a problem.) Pictus catfish, plecostomus, as well as other convicts.
Incubation varies depending on water temperature, but in 60 °F (16 °C) water the eggs will hatch into larval fish in about seven days. [33] After hatching, the larval fish drift downstream into areas of low flow velocity where they forage on zooplankton. [33] Young American paddlefish are poor swimmers which makes them susceptible to predation.
[3] [4] In the game, the player must manage a tank of guppies and other aquatic creatures, and each stage begins with two guppies in the tank. Guppies and other fish drop coins, which can be collected by the player and used to purchase fish food and upgrades, such as more aquatic creatures, food that can keep the fish full for a longer period ...
Fish typically have quite small brains relative to body size compared with other vertebrates, typically one-fifteenth the brain mass of a similarly sized bird or mammal. [10] However, some fish have relatively large brains, most notably mormyrids and sharks, which have brains about as massive relative to body weight as birds and marsupials. [11]