Starting Small? Find the perfect fish for your nano tank.

Keep males separate; provide steady heat, gentle flow, surface access and a cover.

Keep males separate; provide steady heat, gentle flow, surface access and a cover.

Provide algae-covered surfaces and stable water; protect snails from predatory tankmates.

Keep males separate, with steady heat, gentle flow, surface access and a cover.

Provide dense cover, stable warm water and room for fish to retreat from displaying males.

Keep a group of twenty or more with dense cover and a base of at least 45 × 30 cm.

Keep a group of twenty or more with dense cover and a base of at least 60 × 30 cm.

Use a mature tank with established biofilm; confirm actual feeding and supplement food.

Keep a group in a mature aquarium with clean sand or smooth, rounded gravel.

Manage male aggression with cover and sex ratio; offer live or frozen food and fit a lid.

Maintain stable warm water and provide cover, open sand and a base of at least 60 × 30 cm.

Keep a substantial group; avoid slow or long-finned fish. A community needs more space than the minimum species setup.

Keep a group with a base of at least 80 × 30 cm and clean sand or smooth gravel.

Keep a substantial group; avoid slow or long-finned tankmates because of fin nipping.

Maintain strong oxygenation, water movement and mature biofilm on rocks.