yes, but if you drain the tank for cleaning they are not so friendly, they'll bite anything near them. they dont like being out of water. but at that size they probably cant do too much damage to each other. in the water its sort of neat to watch them feed together. most of the time they'll try to avoid biting each other when feeding on the same fish one of them has caught. my 4" snappers are always dug in the gravel next to each other like they like each others company.

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