[john]

i put a long tentacle plate coral in my tank about 2 weeks ago and it opened up great for about a week.it only opens about half way now.i have it on the sandbed on the bottom of my tank and i just added a metal halide fixture(3-400 watters) about a week ago.is it adjusting to the new lights??should i raise it up higher in the tank?im not running a chiller yet and my tank jumps from 76-80 and back down to 76 at night.also,should i feed it when the tentacles are out or when i see the mouth open???thanks for the help