Copperband Not Eating

[Gools]

I just put them in hot water till they open up, then crack them open alittle, so they don't close up when put in the tank.

[i have crabs]

ive had fish wich bacterial problems before and they get a reddish blotch around the face and where the tail joins the body if he will start eating get some selcon or a vitamin additive for its food,
they have small mouths and have a hard time eating if the food is too big.