I have a torch coral that is getting out of hand. It is a green and when I bought it it had tentacles of about 3-4" now they are at least twice that length. They keep get wrapped around items because of water flow and they twist around themselves because of length and movement of water. I thought maybe mine just had long tentacles but after seeing the same frags from same LFS their's are still the normal length. I have it sitting on the sand bottom of a 24" deep tank under 250 mh for about 4 months now.