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Colors of T5 HO bulbs
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Molli View Drop Down
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Joined: June 28 2012
Location: Bountiful, Utah
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    Posted: September 10 2012 at 9:15am
What color combination of bulbs do you use?  I've been reading that some colors can cause more algae growth because certain colors are within the spectrum that some algaes prefer?  Is this just a rationalization for having an algae problem due to excess nutrients or is there actually fact behind this claim?  I really want my corals to pop and just purchase a 4 - T5 HO fixture.
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1973Ford View Drop Down
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Joined: May 13 2012
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Points: 408 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 1973Ford Quote  Post ReplyReply Direct Link To This Post Posted: September 10 2012 at 10:37am
Me personally I like mine to look more blue so I buy the blue + from ATI but it seems like a lot of tanks I've seen use one white and the rest blue and purple and actinits.
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What fixture did you get? 
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Originally posted by disneymania disneymania wrote:

What fixture did you get? 

I purchased a used TEK 4 bulb T5 HO Fixture.  I may run an LED strip on each side of this fixture -- looking for what I want in LEDs.
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Dionysus View Drop Down
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Joined: February 07 2012
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Points: 840 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dionysus Quote  Post ReplyReply Direct Link To This Post Posted: September 10 2012 at 10:47am
Just saw that jeffm is running this combo. T5 mix. 5 blue plus, 1 Fuji pink, 2 aquablue special.
AquaMedic 250 Watt XM 20k
2 420s Vhos
29 DT SPS Dominant
20 G Long Frag

My Tank Progress =)
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Joined: February 22 2009
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Points: 515 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Jimbo Quote  Post ReplyReply Direct Link To This Post Posted: September 10 2012 at 11:10am
I'm not sure about bulb spectrum promoting algae growth but old or weak bulbs definitely can.  Be aware that some of the cheaper T5 bulbs and fixtures do not produce the PAR as some of the better fixtures  ( ATI , Tek etc. )
 
 I have an ATI fixture with 8 bulbs . Currently running ATI bulbs, 5 Blue Plus,2 Purple Plus, 1 Aquablue special.
 
 For a 4 bulb fixture 3 Blue Plus and a Purple Plus is a popular combo. The nice thing about T5's is that you can get a couple of extra bulbs and try some different combinations until you find a combo you like . HTH
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