Water parameters
Overview
The bucktooth tetra is a good-looking species with two large, round black spots on its yellowish-silver body, one at the shoulder and the other at the base of the tail, and reddish fins. In the wild, however, it feeds by tearing off and eating the scales of other fish (lepidophagy). It is a very fast, aggressive tetra that can exceed 12 cm; it is not suitable for a community tank.
Tank Setup
- At least 250 liters for a group of 10 or more; 120 cm length.
- 24–27°C, pH 6–7.5, soft to moderately hard water.
- Plenty of decor that breaks lines of sight (roots, rocks, sturdy plants) spreads out aggression.
- Strong filtration and a lid are recommended.
Diet
Mainly carnivorous. Carnivore granules, frozen bloodworms, mysis shrimp, brine shrimp and strips of fish meat are suitable. Feeding it well reduces attacks on other individuals.
Behavior and Compatibility
When kept in small numbers, the dominant fish can badly batter the others; so it should be kept either in a large group or not at all. It attacks the scales and fins of other fish kept with it; it eats small fish and shrimp.
Good companions: ideally only its own species; armored plecos in very large tanks.
Avoid: almost all community fish, slow and long-finned species, shrimp.
A short profile for this species
The Bucktooth Tetra page has the basics, but the sections below have not been written yet. If you keep this species, write a section from your own experience; it will be published under your name after editor approval.
Tank mates
This list is calculated automatically from the species profile and grows as new species are added to the catalog. Try it in the planner for a definite answer.
Usually compatible
Banded Jewel Cichlid
Chocolate Cichlid
Jack Dempsey
Red Devil Cichlid
Convict Cichlid
Cryptocoryne Parva
Lifalili Jewel Cichlid
Jewel Cichlid
Teleogramma brichardi
Adonis Pleco
Should not be kept together
Hobbyist notes
Things you won't find in books, learned by trial and error. The most helpful ones are on top.
Change history and contributors
- Page created · October 16, 2026








