I put a lr with yellow polyps approx. 40 of them in my tank 4 days ago. I think someone is sneaking some. I have 2 Yellow tangs, 1 maroon clown, 1 Blue Hippo tang, 1 coral banded shrimp (she just molted and is really strutting around) a Mexican Turbo and 4 blue legged hermits. Could it be the...