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Old 01-16-2011, 04:41 PM   #21
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Originally Posted by fort384
No... Same as what I said. Actinics will make the fish look nice, but have no effect on the plants.
Yeah. That's what you told me. I got confused.
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Old 01-16-2011, 04:44 PM   #22
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You're trying to say that the actinic light will soften the intensity of the 6700k?
Not really soften.. You will have 4 bulbs.. Two 6700k which will be good for the plants. Two 10k plus actinic which will be 50% good for plants and 50% good for color of fish.. Thus really only three bulbs being utilized for plant growth and one for color of fish..
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Old 01-16-2011, 05:09 PM   #23
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Not really soften.. You will have 4 bulbs.. Two 6700k which will be good for the plants. Two 10k plus actinic which will be 50% good for plants and 50% good for color of fish.. Thus really only three bulbs being utilized for plant growth and one for color of fish..
Are you saying that the 10,000K is only 50% beneficial to plants? My fixture has 6 bulbs. 2-10,000K, 2-6700K and 2-420nm.
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Old 01-16-2011, 05:16 PM   #24
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It actually has 3 bulbs I think if I am reading this right... it is a power compact fixture, with what looks like 2 bulbs joined into 1 socket. The 10000K bulbs are fully beneficial. What he is saying is that if you have a 50/50 bulb (1 side is 10,000K the other 460NM actinic), and you got 3 of these, then you would have half of your light as usable 10000K, and the other half would be actinic. This would be a good amount of light that would keep you backed off the thresh hold of requiring CO2 in your tank. Later if you should choose to upgrade to higher light, you could swap 1 or more of the 50/50s for a straight 10000K or straight 6700K bulb that would in effect increase your usable light.
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Old 01-16-2011, 05:27 PM   #25
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It actually has 3 bulbs I think if I am reading this right... it is a power compact fixture, with what looks like 2 bulbs joined into 1 socket. The 10000K bulbs are fully beneficial. What he is saying is that if you have a 50/50 bulb (1 side is 10,000K the other 460NM actinic), and you got 3 of these, then you would have half of your light as usable 10000K, and the other half would be actinic. This would be a good amount of light that would keep you backed off the thresh hold of requiring CO2 in your tank. Later if you should choose to upgrade to higher light, you could swap 1 or more of the 50/50s for a straight 10000K or straight 6700K bulb that would in effect increase your usable light.
I have 6 separate bulbs. 2 straight 10,000K, 2 straight 6,700K and 2 420nm actinic. Like what you said, if I want to upgrade all I have to do is replace the actinics with straight 6700 or 10,000K. Each 4-pin bulb has 2 bulbs joined together but with the same output. No actinic. Except for the 2-420nm.
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Old 01-16-2011, 05:31 PM   #26
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Check out this link:

http://www.thatpetplace.com/images/p...ion/244341.jpg
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Old 01-16-2011, 05:47 PM   #27
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So, you have three of those double bulbs or six of those double bulbs in the picture?
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Old 01-16-2011, 05:51 PM   #28
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So, you have three of those double bulbs or six of those double bulbs in the picture?
6 of those.
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Old 01-16-2011, 05:58 PM   #29
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Ok.. I'd run two 6700k and two of the 10000k/blue mixed.. You would have effectively 3 bulbs of plant lights then and 1 actinic to give a color pop..
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Old 01-16-2011, 06:05 PM   #30
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Ok.. I'd run two 6700k and two of the 10000k/blue mixed.. You would have effectively 3 bulbs of plant lights then and 1 actinic to give a color pop..
I don't get it. I don't have any mixed bulbs. Are all 10,000K's mixed? I tested it and both 6700 and 10,000K produces JUST WHITE light. NO BLUE.

Only the 2 separate bulbs of 420nm produces blue light.

They are all 65w.
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