Red Rainbowfish 5cm

The Red Rainbowfish (Glossolepis incisus) is a spectacular and boldly coloured rainbowfish from Lake Sentani in Papua New Guinea. Males develop a stunning deep red to crimson colouration with a high-arched body profile and iridescent scales that shimmer brilliantly under aquarium lighting — one of the most visually dramatic freshwater fish available. A peaceful, active schooling species, they make a breathtaking centrepiece in larger planted and community aquariums.

Care Guide

• Tank Size: Minimum 150L; best kept in schools of 6+ with a ratio of more females to males
• Water Parameters: pH 7.0–8.0 | Temp 22–27°C | Moderately hard, slightly alkaline water preferred
• Diet: Omnivorous — quality flake and pellet food; supplement with frozen or live daphnia, brine shrimp, and bloodworm
• Temperament: Peaceful; excellent community fish — compatible with other medium-sized, non-aggressive species
• Tank Setup: Spacious planted aquarium with open swimming space; strong filtration and good water flow appreciated; dark substrate enhances the male’s vivid red colouration
• Skill Level: Beginner–Intermediate
• Max Size: 15cm (males)