I have 2 clowns which are tank bread and they have not started to host in the anemone yet. The foot was perfect when i bought it and as far as i know it still is. At the moment it actually seems to have a disliking of the light. it is at the bottom of the tank and has not moved since it decided to stay there about 6 weeks ago. its not covered in mucus but one side of its tentacles are very small and look like they are about to drop off. Its always somewhat extended in the mornings when i first turn the lights on then it shrinks back quickly. The mouth also appears to be fine. My reasons for adding the polyfilter were that maybe it would help to take out some of the toxins in the water that i cannot test for? i know you are right Rob but i am kinda desperate for the thing not to die :/ so i will try anything. The closest coral to it is about 6 inches away. These include a brain coral a toadstool and a frogspawn.