African cichlid help

I have a 37 gallon tank with 5 large cichlids in there. Wondering if i should put any more in the tank without crowding it. I have a electric blue, yellow lab, peacock sunshine, zebra and some other kind don't remember what it was. Any suggestions on how many more I could put it and what kind


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Actually that tank is too small already. Those fish should be in a 48" tank at the smallest. But if you could get a 48" tank you could do 10-15 fish depending what you get.

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