Yes, get more kuhlis, you have room in your tank. In my 20g tank I have 4 and they are my favorites. Always feed them at night. Before, I had one in a 10g tank, and I thought it would never get food because all the other fish hogged it, but it always managed to find something to eat in that tank and now I moved him to my 20g to be with the other kuhlis
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