Green neon rasbora
The green neon rasbora is a tiny cyprinid described in the genus Microdevario, native to fast-flowing forest streams of Thailand and Myanmar in Southeast Asia. Despite its common name it is not a true Rasbora. Its body is translucent with a striking lime-green to golden sheen that intensifies under good conditions and in planted surroundings. It is a peaceful, highly social micro-fish that must be kept in a large shoal to feel secure and show its best color; small groups tend to hide and fade. A densely planted nano aquarium with gentle flow, soft acidic to neutral water and subdued lighting suits it well. Because of its small mouth it needs finely crushed flake, micro-pellets and small live or frozen foods such as baby brine shrimp. It makes an excellent dither fish alongside other peaceful nano species and shrimp.
Water parameters
| Temperature | 22 – 27 °C |
|---|---|
| pH | 6 – 7.5 |
| Carbonate hardness (KH) | 1 – 10 °dKH |
| General hardness (GH) | 2 – 12 °dGH |
Tank & stocking
| Minimum tank volume | 60 L |
|---|---|
| Volume budget per individual | 3 L — adds up with tank-mates |
| Minimum group size | 8 individuals (shoaling) |
“Minimum tank volume” is a reasonable floor, not an absolute limit. The per-individual budget is used by the Aqua app to estimate how heavily a tank is stocked.
Frequently asked questions
What size aquarium does Green neon rasbora need?
Provide at least 60 litres for a small group to keep Green neon rasbora in good conditions.
What water parameters does Green neon rasbora need?
A temperature of 22–27 °C, pH 6–7.5.
Is Green neon rasbora peaceful or aggressive?
Its temperament is peaceful.
What does Green neon rasbora eat?
Its diet: omnivore.
How many Green neon rasbora should be kept together?
It is a social species: keep a group of at least 8.
How big does Green neon rasbora get?
Around 2.5 cm as an adult.
Is Green neon rasbora suitable for beginners?
Care level: intermediate.
Planning a tank with Green neon rasbora?
AquaTender turns these parameters into live advice: it checks whether your tank is big enough, how heavily it's stocked, and whether your fish are compatible — then tracks water tests, photos and maintenance for you.
Fish from the same biotope
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