this past week both my torches have lost a head and I have 2 free floating heads, 1 from each torch. They look viable and quite intact, but I don't know why they have done this. Water parameters are all normal, maybe calcium is a little low at 360-380. Only other change is my temp has gone down from 79 to 77 over the last few weeks as I have less pumps in the tank giving off heat. Is this a known behavior or are the torches signalling on coming issues? Tank is a mixed reef with softies, lps, gorgonians and a sps. Noticed my sps piece is having issues too, but a water change has turned it around. Any tips/info would be welcome. Oh, and what do I do with the two heads of torch floating around?