hi everyone, i recently put what i beleive to be a torch coral into my tank. it was introduced yesterday and seemed fine almost straight away, opened up completely. im pretty confident about the placement and its in direct light and moderate water flow.it just has a nice subtle movement about it, not gettin hammered by a powerhead. now it had opened up and been fine for the 16 or so hours its been in the tank but just an hour or so ago half of it retracted its tentacles back in completely and the other half looks to have shrunk a bit as well.. the other thing is that now there seems to be long brown strings coming from what i beleive to be its mouth. are these sweeper tentacles and normal behaviour or is this coral stressed and in trouble? my water paramaters are all good, temp is right, did a water change before introducing it yesterday, it is under twin 24" t5 bulbs, one white, one blue. okay i did have pictures but they are too big to upload and i dont know how to shrink them down to an acceptable size, so any help for now would be appreciated and ill try to post pics asap!!! what could be the problem???