
Red Tail Hemiodus Tetra
Hemiodus gracilis
- Care level
- Intermediate
- Adult size
- 16 cm
- Minimum tank
- 243 litres
- Temperature
- 23–27 °C
Species profile
Copella meinkeni
Common names: Red Spotted Splash Tetra

A small, slim fish with a dark spot on the dorsal fin and red spotting along the body, from the central Amazon. Keep a group of at least 6 in 54 litres or more.
A small, slim fish with a dark spot on the dorsal fin and red spotting along the body, from the central Amazon. Males grow larger, with longer fins. It stays near the surface, so it needs a tight lid.
Check the scientific name when buying, as common names vary between sellers and countries.
Mature females are usually rounder in the belly, and males are usually slimmer and often brighter.
A long tank with open swimming water, plants around the edges and steady filtration suits this fish. A darker substrate and some floating plants usually bring out its colour.
Active and social, and most settled when kept with its own kind.
Keep a group of at least 6, and more if you can. Larger groups are calmer and show better colour and behaviour.
Not territorial, although males may spar and display.
Suits a community of similar-sized, peaceful fish that like the same water. Avoid large predators, which will treat it as food. It may eat baby shrimp.
Fairly tolerant of different water, if it is clean and stable.
A surface insect eater. Feed floating flake and small live or frozen foods such as mosquito larvae, fruit flies and daphnia.
Feed small amounts, and remove anything left after a few minutes.
An egg scatterer with no parental care. Adults eat eggs and fry, so use a separate tank with fine plants, moss or mesh on the bottom, and remove the adults after spawning. The fry need very small foods at first.
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