They are usually pretty peaceful. What size tank is it going into? I keep mine with other severums and Geophagus, but I've also kept it with smaller stuff like keyhole cichlids, Laetacara thayeri, etc.
What are your other fish? Mine is with another severum and a chocolate cichlid, satanoperca and a threadfin acara and some congo tetras a sengalese bicher and a bn.
I have a turquoise sev in with 2 Oscars, a JD, a flagtail, a kamfa flowerhorn, endlii bichir, and a big spotted leaf, it does just fine. Holds his own very well.
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