sun corals are known to be nocturnal. try checking on it at night after your lights have been out for a while. also, i would say corals in general can take a few weeks to get comfortable in thier new enviroment
75g RR. 2x250 14k MH
/ 2x54 T5 act. 29g sump. ASM G1X skimmer. phosban reactor. 80lbs LS
, 90lbs LR
, 2x seio M620.
kole tang, bicolor angel, mandarin dragonette, ocellaris clown / BTA , cleaner shrimp, 2x peppermint shrimp, a variety of soft, SPS
, and LPS
corals, orange linckia star.