I am changing my 10k de halide bulbs to phoenix 14k. My question is will there be any changes I need to do with run time of lights or acclimation. I was told the 14k phoenix bulbs should be replaced one at a time with 1 week in between bulbs.
That advice sounds good. It helps to change your lights slowly so you avoid bleaching your corals. If you have a fish only tank then it's not that critical. You could replace them all at once.
