Looking for some ideas on how to keep these alive. I have no issues with keeping salt water fish alive but having an issue with the convicts. My local store brings them in and they are constantly dying on him and I also tried Divers Den. The two I had in my tank picked at the rocks but would not eat frozen food (mysis). After a few weeks they died. Convicts are very good keeping sponge and algae under control. Any ideas are appreciated.