Well Peanut, Your fears would not have come without reason because The cobra ate the little endli.. It was my own fault but he was supposed to be 3" and the pike 4.5" but the little endli was probably more like 1.5" so he had the option of going in with 7-8" Dats.. a foot long Gar and even bigger unknwown pike...that was one option.. In with the Fahaka puffer... In a 20 gal with a channa gachua who does not play very nice with others or in the ray tank where they more than likely would have made a snack of him. I figured this tank would have been his best bet since the pike had 25 platties to snack on while I tried my hardest to pump the little guy up. ...