i have an 8, incher in my reef tank, it was doing fine until a few days ago when i noticed the mantle starting to curl back and not let itself extend all the way? then it just started to let out a couple of strands of that slimey stuff on the outskirts of its mantle? please help guys? im confused and im hoping i dont loose this guy? i also have a large colt coral right near him that was thriving and now it just shrank and doesnt extend anymore? anybody have a clue as to what might be happening hear?