How many Chili Rasbora should be together?

Chili Rasboras (Boraras Brigitte) are small, peaceful fish native to Southeast Asia, particularly found in the slow-moving waters of peat swamps and streams. They are known for their vibrant red coloration and small size

Chili Rasboras are schooling fish, so they should ideally be kept in groups of at least 6 to 10 individuals. Keeping them in a group allows them to exhibit their natural schooling behavior, which can help reduce stress and promote better overall health. Larger groups exhibit more natural behaviors and may feel more secure in their environment.

I have an 8-gallon tank, and at first, I introduced 6 Chili Rasboras. They’ve been thriving, swimming actively, and growing well, which is reassuring. However, a dilemma arises with only 6 Chili Rasboras in a densely planted tank: they tend to hide, making it hard to spot any fish. Yet, once they grow comfortable, they might venture out and ask for more food 🙂

Later, I got another 6 Chilis to the tank, and now they happily coexist with a few cherry shrimps. Based on my experience, starting with 6 and observing their behavior is a good approach. If they show positive signs, like active swimming and good health, you can consider gradually increasing their numbers.

Honestly, I love them and I wanted to move them to a larger tank to observe their schooling behavior, and I’m in the planning stages for it.

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In summary, keeping Chili Rasboras in groups of 6 to 10 individuals is recommended, but larger groups can be beneficial if space allows.