I'm not sure, it sounds to me like their needs are almost as bad as sub-tropical channas.
Your Pleuro could cause issues, but a bowfin? I'd expect it to fight its way through your entire stock, and either manage to, or die in the process.
I've never had one, so don't take my word for it, but this is the reason I never got one, as it would have been a somewhat alright substitution for my 2nd dream fish which is Micropeltes, that sadly gets even bigger. When I did my studies, I don't recall a single long term good experience of a bowfin in a comm xD