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Old 10-10-2006, 11:12 AM   #1
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Change Actinics on same schedule as daylights?

Hi all: The title says it all. Should I change actinics on the same 6 month schedule as the 10,000K/6,700K daylights?

Do they shift spectrum as they get older causing algae outbreaks?

I have 21" 65W PC's.

Thanks in advance.
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Old 10-10-2006, 11:20 AM   #2
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I would change them at the same time. Yes they change spetrum.
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Old 10-10-2006, 11:23 AM   #3
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Thanks, thought so.

I just beat cyano, and I don't want to give it any reason to come back.
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Old 10-10-2006, 11:36 AM   #4
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Re: Change Actinics on same schedule as daylights?

Quote:
Originally Posted by Finatic
Should I change actinics on the same 6 month schedule as the 10,000K/6,700K daylights?

Do they shift spectrum as they get older causing algae outbreaks?

.
Yes and yes. I change mine every 6 months like clockwork.
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Old 10-10-2006, 07:23 PM   #5
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For the sake of simplicity, I would do it all at once. However, if you stager your start times, you may get longer life out of your 10ks then your actinics. Maybe consider a 6mo and 9mo schedule. Bulbs are expensive.
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