Fishician®Diet
Omnivore – flake, micro pellets, frozen foods
Aquarium species profile
Turquoise Rainbowfish
Melanotaenia lacustris · New Guinea (Lake Kutubu)
Minimum tank40 gal
Adult size4.5"
Care levelEasy
TemperamentPeaceful
Temperature72–82°F
pH range7.0–8.0
Compatible tank mates
Other rainbowfish, barbs, large tetras, Corydoras
Tank mates to avoid
Very aggressive or fin-nipping species
Care notes
Also called Lake Kutubu rainbowfish. Brilliant deep turquoise-blue color with lighter belly. One of the most vividly blue freshwater fish available. School of 6+ shows best color. Prefers alkaline, hard water.
Check the whole aquarium. Tank size alone does not establish compatibility. Confirm adult size, water overlap, social grouping, territory, diet, and the individual animals before stocking.