Lighting time on advice

[Wayne]

Originally Posted by Vitaminz

If you are already running a 20k MH, I would suggest sticking with it, it is what your corals and fish are use to. I personally like the 20k better, more blue in it. Just remember when switching the bulb to reduce your lighting period with the MH to get your corals use to the new bulb. When I replaced my bulb, I went down to a 4 hours on for 2 days, then 6 hours for 3 days, then back to the regular 8 hours after that. Even then, I had a few heads of my corals bleach a tiny bit. Just my 2 cents worth.

Jeff

I just got the metal halide fixture and it hasn't been on much, so they arn't used to the 20,000 yet. I like the slow increase of metal halides though, patience is the game