Dwarf neon rainbowfish care
Melanotaenia praecox
Dwarf neon rainbowfish (Melanotaenia praecox) grows to about 6 cm (2.4 in) and needs a tank of at least 100 liters (26 US gallons). Keep it at 24–28 °C (75–82 °F) with a pH of 6.5–8.
FreshwaterEasyPeacefulJumps: keep a lid on
Adult size6 cm · 2.4 in
Smallest tank100 L · 26 gal
Temperature24–28 °C · 75–82 °F
pH6.5–8
GroupGroups of 6+
TemperamentPeaceful
SwimsMiddle
DietOmnivore
Usually fine with
Neon tetraGuppyBetta (Siamese fighting fish)PlatyCardinal tetraBronze corydorasZebra danioHarlequin rasboraMollyBristlenose plecoCherry barbTiger barb
Avoid with
Paradise fishWhite cloud minnowConvict cichlidOscarJack DempseyDemasoni cichlidCommon goldfishKoiPea pufferBala sharkFigure-eight puffer
Track your tank with Guppi
Log water tests by tapping your kit’s colors, get water change reminders and check every tankmate before you buy.
Typical ranges from hobby references, checked by hand. Individual fish and local water vary.
Arcoíris neón enanoArco-íris neon anãoArc-en-ciel néon nainZwerg-RegenbogenfischArcobaleno neon nanoCüce neon gökkuşağı