A brilliant neon-green nano schooling fish native to the slow-to-moderate rivers of Thailand and Myanmar. Despite their tiny size, they are highly active, darting swimmers that require plenty of horizontal swimming space and well-oxygenated water. They are strictly shoaling fish and must be kept in groups to feel secure and display their best colors.
Neon Green Rasbora (Kubotai) At a Glance
Neon Green Rasbora (Kubotai) Tank Requirements
Will Neon Green Rasbora (Kubotai) fit in your tank?
Care guides tell you what Neon Green Rasbora (Kubotai) needs, the next question is whether your tank can safely provide it. Test Neon Green Rasbora (Kubotai) against your tank size, maintenance needs, and the fish you already keep before you buy.
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Neon Green Rasbora (Kubotai) Water Parameters
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Neon Green Rasbora (Kubotai) Temperament & Compatibility
Neon Green Rasbora (Kubotai) Varieties
Each variety inherits the species defaults above. Only differences are highlighted.
Standard
The standard brilliant green form. They are incredibly peaceful but their fast, darting movements during feeding can sometimes outcompete very slow or shy tank mates.
Same care requirements as the base species
Also known as: Green Kubotai
Neon Green Rasbora (Kubotai) Care Guide Summary
The Neon Green Rasbora (Kubotai), scientifically known as Microdevario kubotai, belongs to the Cyprinids family group. Adults reach a maximum size of approximately 2 cm and have a fusiform body shape with a moderate growth rate. Classified as peaceful, this species primarily occupies the surface and mid-level zones of the aquarium and produces a low level of biological waste.
To thrive, the Neon Green Rasbora (Kubotai) requires a freshwater only aquarium with a minimum volume of 38 litres and a tank length of at least 45 cm. Water temperature should be maintained between 20°C and 27°C, with a pH range of 6–7.5 and a general hardness of 2–10 dGH. A moderate water flow is preferred.
Due to its specialist needs, the Neon Green Rasbora (Kubotai) is best suited for fishkeepers who can provide a carefully planned setup. The Neon Green Rasbora (Kubotai) is typically available in one standard form.
Neon Green Rasbora (Kubotai) Habitat Setup
When setting up an aquarium for the Neon Green Rasbora (Kubotai), a moderate water flow best suits their natural preferences. Because this species occupies the surface and mid-level zones, the aquarium layout should prioritise adequate surface area with floating cover to make them feel secure near the waterline and open swimming space in the centre of the tank for free movement. Useful additions include leaf litter or blackwater tannins to replicate their natural soft-water habitat, light plant coverage for partial shade, and dense planting to provide cover, break sightlines, and reduce stress. Keepers should note that a tight-fitting lid is essential, as this species is a known jumper.
Neon Green Rasbora (Kubotai) Compatibility Notes
Classified as peaceful, the Neon Green Rasbora (Kubotai) is a schooling species that feels most secure in a sizeable group, where natural shoaling behaviour reduces stress and brings out their best colours. When choosing tankmates, their energetic swimming style may stress more sedentary or timid species. Selecting tankmates that favour different water layers from the surface and mid-level zones can help reduce competition and territorial overlap.
Neon Green Rasbora (Kubotai) Recommended Tank Sizes
Standard aquarium sizes that meet the minimum volume and length requirements for Neon Green Rasbora (Kubotai).
10 Gallon Standard
15 Gallon Standard
20 Gallon High
20 Gallon Long
29 Gallon Standard
30 Gallon Breeder
Show 22 more tank sizes
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Frequently Asked Questions About Neon Green Rasbora (Kubotai)
How big does Neon Green Rasbora (Kubotai) get?
Neon Green Rasbora (Kubotai) (Microdevario kubotai) typically reaches a maximum adult size of approximately 2 cm. They have a fusiform body shape and a moderate growth rate.
What tank size does Neon Green Rasbora (Kubotai) need?
A minimum aquarium volume of 38 litres and a tank length of at least 45 cm are recommended for Neon Green Rasbora (Kubotai). This ensures enough swimming space and helps maintain stable water conditions.
What water parameters does Neon Green Rasbora (Kubotai) need?
Neon Green Rasbora (Kubotai) thrives in freshwater only conditions with a temperature range of 20–27°C, a pH between 6 and 7.5, and a general hardness of 2–10 dGH. A moderate water flow is preferred.
Is Neon Green Rasbora (Kubotai) peaceful or aggressive?
Neon Green Rasbora (Kubotai) is classified as peaceful with an aggression score of 1 out of 10. They are generally well-suited to peaceful community tanks.
How many Neon Green Rasbora (Kubotai) should be kept together?
Neon Green Rasbora (Kubotai) is a schooling species and should be kept in groups of at least 6. Larger groups help distribute aggression and encourage natural schooling behaviour.
Does Neon Green Rasbora (Kubotai) have any special tank requirements?
Yes. Neon Green Rasbora (Kubotai) benefits from plants - densely covered, plants - lighly covered, and leaf litter/blackwater in the aquarium. These features help replicate their natural habitat and promote overall health and well-being.
Does Neon Green Rasbora (Kubotai) need a lid on the tank?
Yes. Neon Green Rasbora (Kubotai) is a known jumper, and a tight-fitting lid or cover is essential to prevent escape. Even a small gap can be enough for a determined fish to leap out.
Top Tank Mates for Neon Green Rasbora (Kubotai)
These fish are strong compatibility matches for Neon Green Rasbora (Kubotai) based on water preferences, temperament, adult size, and tank behavior.
Hillstream Loach
Beaufortia leveretti
Ideal Tank MatesSchwartz's Cory
Corydoras schwartzi
Ideal Tank MatesLeopard Cory
Corydoras leopardus
Ideal Tank MatesHi Fin Peppered Cory
Scleromystax macropterus
Ideal Tank MatesGold Laser Cory
Corydoras sp. 'CW010'
Ideal Tank MatesDainty Cory (Salt and Pepper Cory)
Corydoras habrosus
Ideal Tank MatesPlants That Suit Neon Green Rasbora (Kubotai)
These plants pair well with Neon Green Rasbora (Kubotai) based on shared water preferences, layout fit, and how likely they are to hold up in the same aquarium.
Afzel's Anubias
Anubias afzelii
Anacharis
Egeria densa
Baby Tears
Lindernia rotundifolia
Balansae
Cryptocoryne crispatula
Bog Moss
Mayaca fluviatilis
Bonsai Rotala
Rotala indica
Fish Similar to Neon Green Rasbora (Kubotai)
Chili Rasbora
Boraras brigittae
A striking, deeply red nano fish native to the blackwater streams and peat swamps of southern Borneo. They are extremely peaceful and require a mature, densely planted aquarium with soft, acidic water. Due to their tiny size, they are completely safe with adult dwarf shrimp and are ideal for nano setups.
Brilliant Rasbora
Rasbora einthovenii
The Brilliant Rasbora is a peaceful, highly active schooling fish native to the forest streams and peat swamps of Southeast Asia. Known for its shimmering silver body and distinct dark lateral stripe, they thrive in gently flowing, heavily planted blackwater setups with subdued lighting. They are known jumpers, requiring a tight-fitting lid.
Dwarf Rasbora
Boraras maculatus
A tiny, peaceful shoaling fish native to the blackwater streams and peat swamps of Southeast Asia. Known for their striking red/orange coloration and distinct dark body spots. They are an excellent choice for heavily planted nano tanks and peaceful dwarf shrimp setups. Because of their minute size, they are easily outcompeted for food and predated upon by larger fish.
Green Neon Tetra
Paracheirodon simulans
A striking, nano-sized schooling fish native to the blackwater habitats of the upper Rio Negro and Orinoco basins. Distinct from standard Neon Tetras, the Green Neon has a dominant, brilliant blue-green iridescent stripe running the entire length of its body, with little to no red pigmentation. They are extremely peaceful, somewhat timid, and require soft, acidic water with subdued lighting to thrive.
Nana Rasbora
Microdevario nana
A true micro-fish endemic to Myanmar, the Nana Rasbora rarely exceeds 1.5cm (0.6 inches). They exhibit a translucent yellowish body with a subtle iridescent blue lateral stripe and a distinct black blotch on the dorsal fin. Due to their minute size, they are completely peaceful, highly shrimp-safe, and must be kept in schools of at least 6-8 in densely planted, mature aquariums. Providing leaf litter and dim lighting will help them feel secure.
Cherry Spot Rasbora
Rasbora rubrodorsalis
A peaceful and active nano cyprinid native to the slow-moving, heavily vegetated waters of the Mekong basin in Southeast Asia. It is characterized by a distinctive bright red spot on its dorsal fin and a dark lateral line. They are a somewhat shy but excellent shoaling species that thrives in blackwater or heavily planted setups.