Hey i have a 72 gallon bowfront tank. My 2 surviving fish left a snowflake moray eel going on for 2 years now and my damsel fish. In that time i have had these fish die: dwarf lion, panther grouper,sailfin tang,koran angelfish(died 3 days ago), dogfaced puffer. Can some1 help me pic out some good EZ to keep hardy fish?? please reply