I have a 90 litre tank with 4 torpedo barbs (2"), a hoplo catfish (2"), 3 upside down catfish (1"), 6 khuli loaches(2"), and a male symese fighter who is about 2". I bought a rainbow snakhead the other day who is 3". He ate two of my rummy nose tetras.. so i took the remainin two to the shop. my question is will he eat any of my other fish? some proffesional advice would b very much appreciated. i knw he might eat the upside down catfish as their small.. but im planin on getin rid of them. my main concern is he might eat my khuli loaches or my gorgeous fighter as al the other fish r roughly the same size as the snakhead. thanks peoplee