Species profile
Least Rasbora
Boraras microsLeast Rasbora (Boraras micros) is a schooling community species for a cycled 10+ gallon freshwater aquarium. Plan for about 0.6 inches as an adult, 72-80°F water, pH 6-7.5, and moderate care. Keep a group of at least 10; larger groups often behave more naturally when the tank has room.
Community leaningModerate care
10 galMinimum tank
0.6 inAdult size
10Schooling minimum
72-80°FTemperature
Water Range
- pH
- 6-7.5
- GH
- 1-12 dGH
- KH
- 1-8 dKH
Behavior
- Temperament
- Peaceful
- Fin nipping
- 0/5
- Territory
- 0/5
Diet and Care
- Diet
- omnivore/micro-predator
- Diet difficulty
- 2/5
- Care difficulty
- 3/5
Planning Notes
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Open comparisonWill plants work?Match Least Rasbora against aquarium plants for nibbling, uprooting, cover, flow, and water-range flags.
Open plant matchAsk about my setupAsk Advisor how Least Rasbora fits with your current tank, recent logs, plants, and livestock.
Ask AdvisorView native rangeOpen the origins map to see reviewed native-range coordinates and regional context for Least Rasbora.
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