Chili Rasbora: Tank Size, Tank Mates and Setup
A tiny red nano fish for small planted tanks. Keep six or more.
- Minimum tank
- 5 gallons
- Temperature
- 72–82°F
- Group size
- 6 or more
- Adult size
- 0.8 inMiddle of the tank
- Needs very small food and gentle flow.
- Easily outcompeted, so keep it with other tiny, calm species.
Boraras brigittae. Figures are commonly published care ranges; see how it works.
How many chili rasboras per tank size
The most you could keep if chili rasboras were the only species. Open a size in the builder to add tank mates.
| Tank | Chili rasbora, kept alone | |
|---|---|---|
| 5 gallon | Up to 10 | Plan this tank |
| 10 gallon | Up to 22 | Plan this tank |
| 20 gallon | Up to 54 | Plan this tank |
| 29 gallon | Up to 87 | Plan this tank |
| 40 gallon | Up to 120 | Plan this tank |
| 55 gallon | Up to 165 | Plan this tank |
| 75 gallon | Up to 225 | Plan this tank |
What you need for chili rasboras in a 5-gallon tank
A starting setup: 6 chili rasboras in the smallest standard tank that suits them.
5-gallon tank
- These fit a 5-gallon tank and get along. Aim for about 77°F.
Equipment, sized for this tank
Starter supplies
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Chili rasbora tank mates
These share a temperature range and temperament with chili rasboras, with no warnings from our checks.
Use caution with: angelfish, fancy goldfish. Add them in the builder to see why.
Plan a tank around chili rasboras
Add tank mates, check the stocking level and get the equipment sized for your tank.
Open the tank builderChili rasbora questions
What size tank does a chili rasbora need?
At least 5 gallons for a group of 6. A larger tank is more stable and gives you more choice of tank mates.
How many chili rasboras can I keep in a 5-gallon tank?
Up to about 10 if they are the only species in the tank. Fewer if you add other fish.
Do chili rasboras need a heater?
Usually yes. Chili rasbora does best at 72–82°F, which is warmer than most rooms. A 5-gallon tank needs about 25 watts in a 68°F room.
What fish can live with chili rasboras?
Good matches include bettas, neon tetras, cardinal tetras, ember tetras, rummy-nose tetras, black skirt tetras. They share a temperature range and temperament with chili rasboras.