Can Hydrolycus Amatus live in a mix of Satanoperca and Geophagus in a 300G? One of my dream fish, but I don't want my favorite sand sifting pals to become payara chow. If I'm not mistaken, Payara are naturally found with some geophagus species (I believe winemilleri (?) ) Common sense would tell me not to, as I've seen 14 inch specimens eat large trout...just wondering if anyone had success with them.