Acclimating corals to new light

hitmanhoos

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I have a 75 gal with zoas, leathers, a few LPS. They have been under 4 - 110 watt VHO
I added 2 - 250 watt MH pendants.

How should I acclimate the corals to the new lights?
How long should I turn the MH on initially?
How long should I take to ramp up to normal lighting hours?

Speaking of which, how long do you guys run your MH a day?

Thanks
 
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Anonymous

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Well, I'd do it over a week or two and watch them closely for signs of distress. When I switched over to MH I only put them on 3 hrs a day for a couple of days, then 4hrs...etc. The current idea is that keeping lights on more than 8 hrs doesn't do the coral any good and only fuels algae so that's all I run mine.
 

hitmanhoos

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Thank you very much for your reply.

That's about what I was thinking. I just didn't want to hurt the corals by going too much too soon.
 
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Anonymous

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:) well, better to go slowly and not take a chance of burning them.
 

kgross

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What I would say since you still have the VHO bulbs. take a month or 2 to get the MH full time. Start with the MH for like 2 hours a day then after about 4 or 5 days move it up 1 hour. every 4 or 5 days.

kim
 
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