How many betta fish can comfortably live in a 10-gallon tank?
Updated On September 23rd, 2025
is a 10 gallon tank good for 7 betta fish
2 Answers
Most Helpful Answer
Published on August 10th, 2017
Hi there! The general rule of thumb is 1 gallon for each inch of fish, so I think that you may need a bigger tank. If the bettas are 2 inches each, they each require 2 gallons of water, making the minimum tank size 14 gallons. Since male bettas can be territorial and aggressive, I highly recommend a larger than normal tank with lots of hiding places for 7 fish (at least 20-25 gallons). You should also watch them very carefully for fighting, and have a backup plan in case any of them need to be separated. Good luck!
1Pet Parents found this answer helpful
Related Answers from Veterinarians
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Published on July 27th, 2017
It wouldn't be recommended. Bettas do best in little to know current, while Glofish enjoy more current and water flow. Additionally, Glofish are a schooling fish and do best in groups of 6 or more. If you split the tank, there won't be enough room. You would also need to keep the tank at the upper end of the glofish range (72F - 80F) since bettas do best in warmer water, 78 F to 80 F.
1Pet Parents found this answer helpful
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