I got a little pepper Cory the other week from a pet shop, but he seems to sit at the top of the water for air. I found him exhausted and almost on his back yesterday arvo at the top, still slowly swimming around but you could see he was tired. I put him in a breeder box with some plants etc and he is doing really well now, had the whole little Cory tail wiggle going when he was eating his algae waffle and seems a lot happier.I’m thinking he maybe to small for the depth of the tank and is struggling to get up for air which is why he may sit at the top alot more maybe, main concern is being a shoaling fish that I am going to stress him out in the box alone? Any tips thay could help this little guy out?