Red Rainbow Fish Red Rainbow Fish are another boisterous fish that can be semi-aggressive with smaller fish or anything with long fins. They are best kept in groups where they shoal together around a large aquarium. Please be aware that the image is for illustration purposes only. We are unable to guarantee the size, colour, sex or age of the fishes you are purchasing. If you have any questions regarding livestock please contact us. To minimise stress we are unable to hand pick specific fish. Lifespan is an estimate based on optimum conditions. Features Approx. size: 4-6cm Maximum size: 15cm Origin: Asia Ideal number kept together: 6+ Water conditions pH: 6.0–7.0 Hardness: 10-20°H Temperature: 22–26 °C Ease of care Easy. They are very hardy and can adapt to changes in water conditions. Diet Tropical flake would be best however they can have occasional small live or frozen foods. Compatibility Community of similar size with no long fined fish as they can be semi-aggressive towards them. Breeding/ Sex Moderate. Egg scatter, the fry can be difficult to raise. males are larger and brighter than females. Life Span They can live to anything from 4-7 years in perfect conditions. To view the Compatibility Advisory Chart please select the Additional Tab above.