Kubotai rasbora care
Microdevario kubotai · Rivers and streams of western Thailand and Myanmar
Kubotai rasboras, sold as green or yellow neon rasboras, are tiny, glowing lime-green schooling fish for a planted nano tank.
- Tank size
- 10 US gal or larger
- Temperature
- 72 to 79 °F (22 to 26 °C)
- Group size
- 8 or more
- Temperament
- Peaceful
- Adult size
- 0.8 in (standard length, without the tail)
- pH
- 6 to 7.5
- Hardness (GH)
- 2 to 10 dGH
- Lifespan
- 3 to 5 years
- Diet
- Micropredator
- Care level
- Easy
In a 10 gallon
20¼ × 10½ × 12 9/16 in outsideHow to keep kubotai rasboras
Kubotai rasboras, sold as green or yellow neon rasboras, are tiny, glowing lime-green schooling fish for a planted nano tank. Keep eight or more in a 10 gallon or larger tank at 72 to 79 °F with gentle flow and fine foods.
Diet: Micropredator: crushed flakes, micro pellets, baby brine shrimp. Fish food types compared · how often to feed.
Where they swim: Middle of the tank.
Kubotai rasbora tank mates
Share the temperature and water, and neither side eats, nips or bullies the other. Check the full group in the stocking checker.
Scarlet badis
0.8 in · 10+ gal · 72–79 °F
Salt-and-pepper corydoras
1 in · 10+ gal · 72–79 °F
Zebra nerite snail
1 in · 5+ gal · 70–80 °F
Assassin snail
1 in · 5+ gal · 72–80 °F
Ramshorn snail
1 in · 5+ gal · 64–82 °F
Thai micro crab
1 in · 5+ gal · 70–82 °F
Spotted blue-eye
1 in · 10+ gal · 75–82 °F
Bladder snail
0.6 in · 5+ gal · 64–82 °F
Keep apart
Pea puffer: Pea puffers belong in a tank of their own.
Fancy goldfish: Adult fancy goldfish eat fish under about 2 in; kubotai rasboras grow to 0.8 in.
Paradise fish: Adult paradise fish eat fish under about 1.2 in; kubotai rasboras grow to 0.8 in.
Bumblebee catfish: Adult bumblebee catfish eat fish under about 1 in; kubotai rasboras grow to 0.8 in.
Golden wonder killifish: Adult golden wonder killifish eat fish under about 2 in; kubotai rasboras grow to 0.8 in.
Red-tail dwarf puffer: Red-tail dwarf puffers belong in a tank of their own.
What a kubotai rasbora tank needs
A tank of 10 US gallons or more (such as the 10 gallon) with a cover, and the equipment below.
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Aquarium Co-Op Easy Flow Sponge Filter, Small
A sponge filter gives gentle flow and cannot pull in small fish. It runs from an air pump, with airline tubing and a check valve, all sold separately.
hygger AquaFall Aquarium Filter, S
Rated by the maker for 7–10 US gal, which covers a 10 gallon kubotai rasbora tank without being built for a far bigger one.
Aqueon QuietFlow Internal Power Filter 5–15 gal
Rated by the maker for 5–15 US gal, which covers a 10 gallon kubotai rasbora tank without being built for a far bigger one.
hygger Precise Aquarium Heater 50W
Kubotai rasboras need 72 to 79 °F; most homes run cooler, so a heater holds the temperature.
API Freshwater Master Test Kit
Tests ammonia, nitrite, nitrate and pH, the readings that matter most before and after adding kubotai rasboras.
Seachem Prime 100 mL
Removes chlorine and chloramine from tap water at every water change.
Fluval Edge Thermometer
Shows the water temperature at a glance, so you know it stays within 72 to 79 °F.
More choices, each with the reason it is in or out: Filters for a 10 gallon tank · Heaters for a 10 gallon tank. We don’t list fish food: any good brand of the foods under Diet will do. Plan the whole tank's equipment →
Common kubotai rasbora problems
- Their mouths are tiny; feed crushed flakes and baby brine shrimp, not standard pellets.
- Larger fish such as angelfish eat them.
Test the water first whenever fish look unwell: see what your readings mean, then match the symptom. For disease, a vet who treats fish can diagnose it and advise treatment.
More to compare
Sources
Name, origin and adult size checked against Wikipedia: Microdevario kubotai. Temperature, pH, hardness, group size, lifespan and minimum tank size are common hobby guidance, not figures from that article. Ranges are the range the species tolerates; aim for the middle. Minimum tank sizes are for an adult group. Drawings are our own; photo credits follow.
Photo credits
Real photographs from Wikimedia Commons, resized and cropped to fit; each is used under the license named.
- Kubotai rasbora BottomDog, CC BY-SA 3.0, via Wikimedia Commons
- Scarlet badis ATuin-hek, CC0, via Wikimedia Commons
- Salt-and-pepper corydoras D.W., CC0, via Wikimedia Commons
- Zebra nerite snail TheJammingYam, CC BY-SA 3.0, via Wikimedia Commons
- Assassin snail Steffi Klee, CC BY-SA 3.0, via Wikimedia Commons
- Ramshorn snail Dat doris, CC BY-SA 4.0, via Wikimedia Commons
- Thai micro crab Sean Murray, CC BY-SA 2.0, via Wikimedia Commons
- Spotted blue-eye Der Regenbogenfisch, CC BY-SA 3.0 de, via Wikimedia Commons
- Bladder snail Dat doris, CC BY-SA 4.0, via Wikimedia Commons
- Pea puffer Beta Mahatvaraj, CC BY-SA 4.0, via Wikimedia Commons
- Fancy goldfish Benson Kua, CC BY-SA 2.0, via Wikimedia Commons
- Paradise fish André Karwath; edited by Muhammad, CC BY-SA 2.5, via Wikimedia Commons
- Bumblebee catfish CHUCAO, CC BY-SA 4.0, via Wikimedia Commons
- Golden wonder killifish Marrabbio2, CC BY-SA 3.0, via Wikimedia Commons
- Red-tail dwarf puffer Neale Monks (English Wikipedia), CC BY-SA 3.0, via Wikimedia Commons
- Harlequin rasbora NasserHalaweh, CC BY-SA 4.0, via Wikimedia Commons
- Chili rasbora JoKrimmel, CC BY-SA 4.0, via Wikimedia Commons
- Celestial pearl danio Cisamarc, CC BY-SA 3.0, via Wikimedia Commons
- Zebra danio Roundish, CC0, via Wikimedia Commons
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