Uhh....... Lemme approach this question one step at a time.
1st, Any fish big enough to break a 75, shouldn't be in a 75.
2nd, Any fish small enough to live in a 75, yet strong enough to break it and aggressive enough to try will DESTROY, anything else in the tank with it.
So, with that being said: yes, the 'dovii will do ok with them'
chances are dovi will kill them!
75 DUDE THAT is too small for a dovi
a single male dovi needs atleast a 300gallon IMo if you want tankmates with it 180Gallon without
I'm not tryin' to be a ballbuster, but sometimes I do stupid stuff like click on your tank set ups buttons and read your sigs and stocklists - If all you got is 75 gal tanks and all thoose fish, I'd be thinkin' bigger tanks. I gave my Female Dovii away to another MFKer @ 9" she was a real bastard and deserved a mate and a large tank. Maybe someday I'll get a Dovii pair myself but when I do I'll do it right with at least 300 gal. of water and no expectations of tankmates. IMO- Dovii are true monster fish.