Hi,
davelin315 has a good idea. Copperbands are shy and should be kept in a quarantine for a couple of weeks so they can adapt to captivity and learn to eat new foods. In the wild they eat a lot of small crustations and worms. Feed it some live or frozen blood worms after you move it to quarantine. IMO, they pick at clams but have a hard time eating them with thier tiny mouths. Once it is eating feed it some finely chopped clams, scallop, shrimp and uncooked prawns. Feed it some frozen Pacifica plankton, its good for them and small enough for them to handle. Live foods are best to get them started. I have kept two and they lived from 4 to 71/2 years for me. Try to make sure they get enough iodine in their diet. This is provided by feeding them uncooked finely chopped prawns and adding iodine to the water (do not over do the Iodine in the water. Soak the foods in vitamins and Selcon for HUFA, this contains highly unsaturated fatty acids.
Terry B