yup those pictures definetly do match the creatures that i saw in my tank.. i looked up all the possible creatures that all u guys mentioned and what i do seem to have are tons of brittle starfish (very small) and asterina starfish. but haven't seen them lurking around them.... but i guess i shall try the dip it's work the shot. from about 16 polyps that it had they are now down to about 4-5 polyps .... thanks for the info..