I have 2 clownfish, a dwarf angel, one spot foxface and royal gramm in my tank. It has been set up for about 2 months, I cycled the tank with live rock for a month before adding fish. The clowns were added first. Both have been doing well for a out 3 and a half weeks, I added the other fish about one per week. Now one clownfish is doing great while the other sits at the bottom of the tank and doesn't even go for food when feeding time. I attached a picture as it doesn't look like ich or anything. Any ideas or suggestions would be appreciated.