i put a green metalic open brain in my tank a week ago and it has not opened up at all yet. it seems to come out alittle at night but totally retreats in the day. it was fully open ath the l.p.s. i have 4 p.c's (65watts each) and 2 -175 watt m.h. in a 120 corner tank
It could be the difference in lighting from the original tank and its new home. Is you lighting more intense? I would be patient if this is the case. It should start to adjust in a few more days.