PC to 250 MH Transition

[TheKid]

I just switched my lights from power compacts to a 250W metal halide pendant, it is currently 2 feet off the water . The question I have how often should I move it down and how far should it move at a time and what will be the final height from the water?

My tank is two feet in height with mostly with softies.


Thx,
Stefan

[TheKid]

Bump

[TheKid]

Anyone?

[Chin_Lee]

250's will be quite strong for softies but still good. My 150's are about 4-5" off the water's surface for LPS/softies tank. I would just slowly move it down an inch per day if they're 2 feet off the water now. Re-adjust if you see your softies reacting negatively.

[zazzoo]

thats alot for softies.... they dont need lots of light... the higher the better just so the water does not heat up

[steve fedyk]

how does the light look over the tank.
I would move the light about 1"-2" every three to four days. keep an eye on how much the softs open up. If they close move the light up or hold the hight for a week and see what happens. the light should be between 8"-12" off the water at the end.
watch the water temp, don't let the water go over 83F.