Help! Yesterday I added 2 dwarf lions to my tank. It's a 50 gallon, live rock, some polyps and mushrooms, hermits, some peppermint shrimp that came in on the live rock, and two fairy wrasses. The fish were ordered in to The los two weeks ago. They have been eating and doing well. All water tests are good, or my guy at the store would never have let me bring these two home. Both dwarf lions are laying upside down in the bottom of the tank gasping. Any ideas, any way to help them???