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Question
hi i have a 90 gallon tank with African chichlids and i would like to know if i
would be able to put Spotted Green Puffer fish in with the African chichlids

Answer
Hi Ricky,
Green spotted puffers are very cute and amazing fish. But they often don't do well with other fish not of their own type. They are very prone to fin nipping and so may prove to be a real menace to your cichlids. They also do best as brackish water fish. For more info on that, please read here.
http://www.aquariumlife.net/articles/tropical-fish/64.asp

I really hope this helps and best wishes!
Karen~