Clownfish Color Has Changed Color.


Reefing newb
I have 2 Clownfish Amphiprion ocellaris in my 20 gallon Aquarium. They were orange when I received them with the aquarium in June of last year. Now they are brown. They eat well. I feed them frozen clam meat, frozen cooked shrimp, frozen fresh shrimp, frozen salmon, frozen deer heart(out of that now), Algae sheets, NutriDiet Marine flakes and OMEGA ONE Shrimp Pellets. Any suggestions on how to bring back their color? The one is about 2 1/2 inches long and the other one about 1 1/2 inches long. Any suggestions would be appreciated.:(
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