I have been reading the posts about anemones and the difficulty of keeping them alive for any length of time. I have several in my tank that came with the live rock several months ago. They are really interesting creatures and the clown/anemone relationship makes them a real crowd pleaser. Most of the time they look really great, but at others they are worrisome. I have included a couple of pics of 'Igor'. He arived as a rather beat-up and pale critter. We feed him 3-4 times / week with shrimp, and plenty of light. The water parameters are always "0" with the occasional trace of nitrates. My wife feeds rather heavy, she likes to see the other fish feed too. Last week Igor's oral disk became enlarged. (looked almost like a poppy bulb before flowering) and a stringy, slimy discharge was emitted. The clown even helped pull it out. I had never seen this before. Is this normal, or should I be worried?