Glowlight Danio

A small, vivid danio with an orange-red lateral stripe, blue-black bars, and brightly marked fins.

The accepted spelling is Danio choprae. Danio choprai and Celestichthys choprae are older usages.

Adult females are generally fuller-bodied and slightly larger. Mature males are usually slimmer and show stronger colour, especially during courtship.

Keep a group of at least 8 in an aquarium at least 80 cm long. Provide open swimming space, secure cover, efficient filtration, and strong but broken-up water movement.

Use plants, wood, and rounded stone around the margins while preserving a clear central swimming area.

Direct the current through open water but leave calmer pockets behind plants, wood, or stone so every fish can rest without being forced against the flow.

Glowlight Danio is a social, active schooling fish that should be maintained with its own kind. Most chasing is part of normal group interaction, but cramped quarters or a group that is too small can concentrate aggression.

Maintain at least 8, preferably 12 or more. A larger group produces more natural schooling and spreads chasing. Not truly territorial, although males may spar or defend short-lived display positions within the group.

Choose peaceful, similarly active fish that share the same temperature and water requirements. Very slow, timid, or long-finned tankmates may be stressed by constant movement or persistent feeding competition. Small shrimp and shrimplets may be eaten.

Keep the water clean and oxygen-rich. Soft to moderately hard water is preferable, with no sudden chemistry changes.

Use finely crushed flakes, micro-pellets, cyclops, small Daphnia, microworms, and newly hatched Artemia that can be swallowed easily. Offer modest portions that the school can finish promptly, and distribute food across the surface or current so subordinate fish have access. A varied diet supports colour, condition, and breeding readiness better than relying on one dry food.

Feed small portions once or twice daily. Active danios feed quickly, so check that slower tankmates receive food.

An egg-scattering spawner with no parental care. Condition adults well, then use fine-leaved plants, spawning mops, mesh, or marbles to protect eggs from the adults. Remove the breeders after spawning and raise the fry on infusoria or very fine prepared food before moving to microworms and Artemia nauplii. For uncommon species, keep detailed notes on temperature, timing, adult condition, and fry growth because dependable species-specific aquarium reports may be limited.