Help! Tank sitting!
 

I am watching my buddies tank. He feeds flake food.

The last two nights after feeding, his large clown floats to the top. Almost like it gulped a ton of air while consuming flakes off the surface!


Is this what is going on? Both nights the clown was fine until after feeding.

Help help help !

I'm not doing any dosing or anything. Fresh top up in his sump and feeding.