So i finally got the breeding and Rearing almost down. Now i have a new problem. When i sell to the lfs they die within a week. It makes no sense my fish are in a system(of just clowns) and the lfs runs off of a huge system. What can be the problem. The lfs owner suggested i add a wild fish. My fish are disease free when they leave my tank but die within a week at lfs. The owner says they eat and stuff but he insists its their immune system. any thoughts?