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Old 08-30-2003, 01:03 PM   #1
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Join Date: Jul 2003
Location: Park Rapids, Minn USA
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ligth vs algae

HI all,

I have starrted to increase the time exposure for my lights now that the algae problem is starting to subside and now I am running into the same problem.
When I put new PC lights on my tank, I started to get a lot of green algae. It was suggested that I run the PC for just a couple hours a day and run my actinic for the whole day, and then start to slowly increase the exposure. I have increased to 2 hrs in the past 4 days for a total of 5 hrs a day, and the algae is returning.

Could it just be the perticular spectrum of my PC lights?
I am running PC 10,000K combo actinic\broad spectrum 65X2...and....
PC 55X2 actinic K? .
Is this a good combination or do you suggest a different mix that will fit my fixture that will eliminate this prob?

It is a 55g reef. ( my corals are doing fine with the reduced light conditions at this point.)

I have slowly been doing water changes with RO water that I can now purchase at my local market. How often can I safely do a change. My levels are fine. And I have been using RO for topoffs also. I have added another PH so now with my back filters and my PH's I turn over my tank
26 times an hour.

Any input would be great.


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Old 08-30-2003, 05:50 PM   #2
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How often do you feed? What do you feed? Are you running a skimmer? Do you have a DSB?

If the nutrients are in the water, your going to get algae.

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