hi everyone i have been having a problem with a zoa frag
6 t5 ho
lights 50/50 atinic and daylights 12000k each
the frag has been in the tank for 6 months and has just recently started closing
my other frags are open
any ideas on why?
fish include 2 clowns, 5 blue chromis, and a lawnmower blenny few crabs and snales