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It grows up to 5 cm (2.0 in) in length, but this does not include the Threadfin's long tail. Sexing is easy by examining fins: males have larger, gaudier finnage than females. Males also have more intense colours. [2] When reproduction takes place eggs are scattered among the leaves of submerged vegetation, and hatch after 7–10 days. [3]
Ranging in length from 11 cm (4.5 in) in the dwarf threadfin (Parapolynemus verekeri) to 2 m (6.6 ft) in fourfinger threadfin (Eleutheronema tetradactylum) and giant African threadfin (Polydactylus quadrifilis), threadfins are both important to commercial fisheries as a food fish, and popular among anglers. Their habit of forming large schools ...
Eleutheronema tetradactylum, the fourfinger threadfin, ... (6.6 ft), although 50 centimetres (20 in) is a more normal size. [2] Distribution
Also known as golden wrasse, golden rainbowfish, and canary wrasse; scientific name halichoeres chrysus. Maximum length: 5.5 inches Wild habitat: Australia, Indonesia.
The eggs are deposited singly, in small clusters, or in a mass, and invariably on or near the food source. Captive moths have been known to lay eggs in the cages they have been sequestered in. [18] [62] Egg size in the Lepidoptera is affected by a number of factors.
Rainbowfish usually eat floating flakes in captivity, because in the wild they will often eat insects floating on the surface. In a home setting, these fish need well-oxygenated water with a pH level of 6.8 – 7.2, optimal temperatures varying between 72 and 82 °F (22 and 28 °C), and plenty of aquatic plants to give them hiding places amid ...
Mostly; can destroy unhealthy Acropora by laying its eggs in the coral's tissue: 8 cm (3.1 in) Court jester goby: Amblygobius rainfordi: 6 cm (2.4 in) Diagonal bar prawn goby: Amblyeleotris diagonalis: Yes: 8 cm (3.1 in) Diamond watchman goby: Valenciennea puellaris: Yes: Burrow and sift sand constantly; very good algae eaters: 20 cm (7.9 in ...
Polynemus, a threadfin, belongs to the same group as flatfish, but looks completely different. The most basal members of the group, the threadfins, do not closely resemble the flatfishes. The surface of the fish facing away from the sea floor is pigmented, often serving to camouflage the fish, but sometimes with striking coloured patterns.