Picked up an armatus in June, now trying to convert him off live. He is in a 220 gallon tank with 6 silver dollars. I feed them shrimp which he approaches but just follows to the ground. Hes also gone 3 days without eating. My question is should i switch to tilapia since it might have a fishier smell then the shrimp? I got a few more days before i break and feed this guys some feeders. Thanks for the input guys much appreciated.