well like i said he likes to sit under the waterfall where we cant see him, the other day we scared him out with a net, he swam away good. doesnt look sick, but i think the sore is still there. after the first week we got him, i witnessed him chase and trash a brim... i dont think he got it though. after that i thought he was eating, but like i said we are going on a month and all the food is still swimming like its all good.