ive had this 4 headed neon green caulastrea since shortly before sam left. it has been well expanded and in the process(albeit slowly) of dividing. so, last week, it tumbled down onto a colony of red shrooms(hermits), ever since it just hasn't expanded well, and i also noticed some discoloration on the back sides of the polyps, kind of brownish. i moved the caulastrea away from the shrooms into another spot that should be well suited. the tissue does not appear to be damaged anywhere, it's just acting funny. any ideas?