It could be something in the new rock, i also had a foam pad in my sump that was new, i used it between the baffles to keep some of the culupera from getting into the pump, i have removed that. My culupera is under light 24hrs a day. It is in my sump that is made from a 20G tank in the basement. The water temp is 80deg, salinity is 1.024, and it is lit by my old hood which is just 1 18W bulb. I have no idea what type of bulb this is, all it says is eclipse preheat. The lady at the fish store said culupera does not need special light, anything will work. So i figure i would just use one of the fixtures i had from my 55G. I would say that the refuge area is 12w"x9h"x"12L" and maybe holds 5G of water. Should i go buy a new bulb for the colupera, for some reason these bulbs are like $40 for 18w. Should i be triming the small brown parts off and the parts where the bubbles have opened to flat leaves?

Thanks