Going to drag this old thread up also. Have a Duncan frag I picked up a month ago, it was doing great but had a couple brown spots on it, didn't think anything of it. Fast forward tonight. Looked into tank and notice the Duncan doesn't seem so happy. I notice some brown spots on the actual polyp now and not just the branches. Quick google search leads me to the conclusion of flatworms. Scoop out a small container of water and adds a full package of one shot coral rx. Prob 5x the dosage I would guess. Give the coral a 3 min dip and a vigorous shake. Prob 50 flatworms fall off. Tiny ones mind you maybe the size of 2 grains of sugar. Dip it again and shake it. Grab the only other frag close(sumpodium) and dip it just to be safe. I have not notice any flatworms anywhere else in the tank or on any other corals. My question is how likely is it that they have spread to the rest of my tank and I don't see them?
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