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How long should I leave my lights on for?

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Krish

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Oct 23, 2004
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Well, I finally got my Corallife Powercompacts ( 48 inch 2x65 10,000k and 2x65 blue actinics) which is in my canopy on my 90 gal tank. I was wondering how long and in which order should I use the lights. I was thinking on running my blue actinics in the morning for about 2 hours by themselves, then having my 10,000k's come on for about 8 hours (with the blue actinics) and then shutting off the 10,000k's and just letting the blue actinics run for another 2 hours by themselves. Just a thought...What's your opinions. Oh, and by the way, I have 110 lbs of live fiji rock and no corals yet, but soon i'll add some gradually. Thanks.
 

Angelscrx

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Jul 30, 2004
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Welcome to the board! I think most people recommend 8-10 hours of light time.

I have 2 actinics and four PCs on my 55g. I have the actinics and one set of PCs come on first then the second set of PCs come on 1.5 hours later and then the reverse to turn off.
 

wrightme43

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Jul 1, 2004
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bowling green ky
Sounds good. Maybe a little shorter if you will. I usually only give my atinics a hr on both sides of the white. Yours may work better. Steve
 

DonW

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Since you have the luxury of living in the Bahama's, why dont you match you own photoperiod. I would assume alot of the coral that you will be getting are collected some what local to you. I would make it summer year round. The only thing I do different is moving my "acrylic cloud". I have a 1.5" black acrlic rod that I roll around randomly on top of the tank to create a man made shadow/cloud. This really gets the coraline growingfor some reason.

Don
 

Angelscrx

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DonW said:
Since you have the luxury of living in the Bahama's, why dont you match you own photoperiod. I would assume alot of the coral that you will be getting are collected some what local to you. I would make it summer year round. The only thing I do different is moving my "acrylic cloud". I have a 1.5" black acrlic rod that I roll around randomly on top of the tank to create a man made shadow/cloud. This really gets the coraline growingfor some reason.

Don
That sounds like a neat idea. Do you have a pic of it? I have heard of folks changing photo periods by season and or according to weather conditions. very high tech stuff though.
 

DonW

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Tacoma, WA
Angelscrx said:
That sounds like a neat idea. Do you have a pic of it? I have heard of folks changing photo periods by season and or according to weather conditions. very high tech stuff though.
I guess I could take a picture of it. Its just a black rod. You could use a chunk of pvc pipe, anthing would work. It just tones down the halides with a shadow in a small area.

Don
 
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