Glowlight tetra

Glowlight tetra
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Characiformes
Family:	Characidae
Genus:	Hemigrammus
Species:	H. erythrozonus
Binomial name
Hemigrammus erythrozonus (Durbin, 1909)

Hemigrammus erythrozonus, commonly known as the glowlight tetra, is a small tropical fish from the Essequibo River, Guyana, South America. It is silver in colour and a bright iridescent orange to red stripe extends from the snout to the base of its tail, the front of the dorsal fin being the same color as the stripe. Other fins are silver to transparent. The glowlight tetra is a peaceful, shoaling fish. It is larger than the neon tetra, and its peaceful disposition makes it an ideal, and popular, community tank fish. It should be kept with similar sized, non-aggressive species. Hemigrammus gracilis is a senior synonym. The red-line rasbora (Rasbora pauciperforata) of Malaysia and Indonesia has markings and coloring very similar to H. erythrozonus, but is a member of family Cyprinidae, not a close relative.

H. erythrozonus is a medium-sized tetra growing to 4 to 5 cm (1.6 to 2 inches), notably larger than both neon and cardinal tetras. It has a life span of two to four years when kept in good conditions.

In the wild, the fish eats aquatic insect larvae.

H. erythrozonus is readily available and usually inexpensive. Golden and albino varieties are also sold. It is best seen in the freshwater aquarium when kept in subdued lighting with a dark substrate.

The water should be soft to slightly hard, d°GH of 6° to 15°, with a slightly acidic pH of 6.8, in the range 6.0 – 7.5. It prefers a temperature of 25 °C in the range 22° – 28° °C (72° – 82 °F). The hardiness of this fish allows it easily to adapt to harder water, though soft water is essential for captive breeding.

H. erythrozonus is an omnivore and in the aquarium eats small live, frozen and dry foods and flake foods. The feeding of vegetable matter is suggested to vary the diet.

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Wikipedia