My clown fish has stopped eating. I bought tank with him in it 8 months ago so not sure how old he is but he is big. About 3 inches long so he must be at least 3 years old. He is the Dominant fish in the tank but at the moment he's not eating and hides in the back of the tank 70% of the time leaving his Sea Anemone alone in the front (very strange). I don’t notice any spots or different colors on him and everything seems fine with other fish and all. He's just not eating or guarding his Sea Anemone witch he never leaves. What should I do? He has been this way for 2 days. I have never had a sick fish so I don’t know what to do
