List of Freshwater Aquarium Fish Species

Rainbowfish

Common name	Taxonomy	Size	Tank Type	Care Level	Remarks
Salmon-red rainbowfish	Glossolepis incisus	13–15 cm (5–6 in)			aka Red rainbowfish. These are very hardy fish and get along with almost any fish. They aren't aggressive and love to follow fingers! When these fish get stressed out they tend to turn a more gray color. It will regain its color when it becomes more relaxed
Tami River rainbowfish	Glossolepis pseudoincisus	7.5 cm (3.0 in)			aka Millennium rainbowfish
Lake Wanam rainbowfish	Glossolepis wanamensis	13–15 cm (5–6 in)			aka Emerald rainbowfish
Threadfin rainbowfish	Iriatherina werneri		Species	Easy	Threadfins have very tiny mouths and cannot compete well with other fish for food. Keep in species only tanks or with small Pseudomugil (i.e.: gertrudae)
New Guinea rainbowfish	Melanotaenia affinis	13 cm (5.1 in)
Boeseman's rainbowfish	Melanotaenia boesemani	10–13 cm (4–5 in)
Duboulayi's rainbowfish	Melanotaenia duboulayi	13–15 cm (5–6 in)			aka Crimson-Spotted rainbowfish
Australian rainbowfish	Melanotaenia fluviatilis	13–15 cm (5–6 in)
Lake Kurumoi rainbowfish	Melanotaenia parva	7.5–8 cm (3-3.25 in)			aka Flame rainbowfish
Neon rainbowfish	Melanotaenia praecox	6-7.5 cm (2.5–3 in)
Eastern rainbowfish	Melanotaenia splendida splendida	13–15 cm (5–6 in)