Yes! The big guy's breathing looks normal now. He still only wants to eat artemia though... for some reason, he's not very keen on fd tubifex cubes anymore either. When I first gave them he came up immediately and started nibbling on the cube and ate some loose worms too. Now it's just a few nibbles on the cube and then he spits them back out. What would be the best tactic to interest him in eating different foods? Just offering something else until he's hungry enough? Or feeding artemia every day even if he picks and chooses, just to make him eat more, hoping he'll eventually start accepting other foods? I have already tried mixing other foods with artemia and letting it all soak in the same cup for a while.