A few years ago, I was given an 11" clown knife in a 35 hex because (surprise surprise) he would eat every fish she'd put into it's tank. A couple of days ago I was cruising craigslist and found a listing for a 21" clown knife in a 55 gal with a needlefish. Since I needed the tank, I bought the fish and their setup. I was originally planning on selling both fish, but now I'm hoping to get the knife into an indoor pond in the near future. Boy I've missed having a clown knife! <3 I was wondering if anyone could suggest what pellets I can put Leviathan on? They've been feeding him goldfish... : /