Neon Green Rasbora

• ExerciseHigh

  A busy, energetic swimmer — keep plenty of open swimming room.

• GroomingRoutine tank care

  Weekly partial water changes keep them in top shape.

• Living spaceNano-tank friendly

  Happy in a small, stable, well-filtered tank.

• Owner experienceFor experienced owners

  Rewards owners who know the ropes.

• Commitment3–5 years

  Plan for a long, loving relationship.

Health to watch: Ich (white spot) · Fin rot · Skin conditions

The Neon Green Rasbora (Microdevario kubotai) comes from small forest streams in southern Thailand and Myanmar and reaches about 2 to 2.5 cm. Its colour is structural rather than pigment, so the intense apple-green appears and disappears depending on the viewing angle and lighting. It is technically a danionin rather than a true rasbora, though the trade has kept the older name. Keep a shoal of at least twelve, and ideally twenty, in a planted tank of 45 litres or more at 22-26C with a pH of 6.0 to 7.5 and soft to medium water with gentle to moderate flow. It appreciates cooler, well-oxygenated water than many tropical nanos and does poorly if kept too warm. Feed crushed micro-pellets, fine flake, live and frozen daphnia, cyclops and baby brine. It is a shy, skittish fish that hides in small groups, so numbers genuinely matter here: a shoal of six will spend its life in the plants, while a shoal of twenty will swim in the open.

• How active is a Neon Green Rasbora?

  High. A busy, energetic swimmer — keep plenty of open swimming room.

• How much maintenance does a Neon Green Rasbora need?

  Routine tank care. Weekly partial water changes keep them in top shape.

• What tank size does a Neon Green Rasbora need?

  Nano-tank friendly. Happy in a small, stable, well-filtered tank.

• Is a Neon Green Rasbora a good fit for first-time owners?

  For experienced owners. Rewards owners who know the ropes.

• How long do Neon Green Rasbora live?

  3–5 years. Plan for a long, loving relationship.

• What health issues affect the Neon Green Rasbora?

  Keep an eye out for Ich (white spot), Fin rot, Skin conditions. These are worth raising with your vet, along with any screening they recommend.

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