silicon anemone

Hi All, I have an 8 foot 240G FOWLR and I have a pair of clown hosting in a Silicon Anemone. My fishes do not fight and live happily... it's a 1.5 yr old tank with all fishes together for 3 months, no change and 0 fight. The clownfish is hosting in a silicon Anemone and eats, sleeps around...