Hello, I have a 2 month old reef tank, 90g Tall, 12g Fug, 30g Sump,w/Skimmer. DT has 75 lbs LR and 4"DSB. My 5" Scribbled Rabbitfish has small, perfectly formed opaque circles showing up over the past week.... the first one I noticed at dusk and it was about .5mm located on his side. The next morning the area where the circle had been was showing brown specks. He had been flashing a bit for a week and I was planning to get neon cleaner gobies as soon as I could. Now I can see two more opaque faint circles (perfectly round, same size .5mm) on his bottom..... there are no more brown specks anywhere yet. From everything I have tried to read in the past week, it just doesn't match up with Black Ich, but I did come across a mention of zoanthid sting/burn. What I'm trying to figure out is whether to stress him out and do a series of FW dips or just wait and see. He is very normal in all other ways. I actually did order my neon cleaner gobies last Friday when we got home from a mini-vacation..... and they were fine on Saturday after acclimating, I saw them yesterday morning while cleaning the glass, but I think they are hiding now -- probably because I have the biggest Coral Banded Shrimp I have every seen, body alone is 3.5" long. She has been in the tank for 2 months now and has molted 5 times!!! Godzilla Shrimp! So if I need cleaners for my Rabbitfish, I would have to get rid of the Shrimp. My other occupants are the usual snails, brittle stars, spaghetti worms, a feather duster that has doubled in size in 2 months to 3" across, some zoanthids, and a Black Sailfin Blenny, and a Picture Dragonette. Any advice would be eagerly read...... Thanks!