I was using both 72 and 48 inch pc's on the tank previously so I am hoping it won't be too big a change for them, .
where do you find PC's that are that long? longest I have seen is 36"??
Steve
Sorry for the confusion, I had been using a 72 & 48 inch fixtures, each with 4 bulbs inside.
Question,
If bleaching does occur will the coral eventually go back to normal?