Anemone is not needed in fact they can sting them and cause brown spots. They will heal and be fine in a few days as it adjusts to it. My clown is busy being friends with my wrasse, swissguard basslet(who he sleeps with), and spotted mandarin.Opinions please. The 2 previous owners of our BioCube 8 had clownfish. Is this size suitable for them? Just 1. No other fish. Is the anemone needed in captivity?
Some clowns like the maroon especially can grow to 8 inches and are super territorial. So for that kind. Yes it would be very small to house an 8" fish.
Tomato clowns are another nasty territorial clown. A lot of divers get attacked by them.