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Old 01-31-2011, 02:26 AM   #1
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A Question For the Light Experts

Alright. I have a 20x20x10 aquarium.

I want to keep mainly zoanthids, playthoas, some LPS, and a few variations of SPS. Also i want to keep one maxi mini anemone.

I want to retrofit 2 18" Current T5HO fixtures together. So that would be about 72Watts of T5HO light over roughly 9.5" of water. Lost a half inch from the overflow.

Will i be able to keep the livestock i mentioned above? Also, will i run in to any cover issues? As in, will these two lights give me enough coverage throughout the whole footprint of the tank?

I was also thinking of running 3 12k bulbs, and then one 420nm bulb for coral color. Would that be too little actinic to see nice colors? Would i have to equalize the colors? As in, 2 12k bulbs and then 2 420nm bulbs? I could also go 2 12k bulbs, 1 460nm and 1 420nm, although i don't know what kind of color that would produce.

On another note... I hear T5's really give zoanthids great colors, and i am wondering if this is true since i intend on keeping mainly zoanthids.

Thank you to anyone that reads this. Much appreciated.
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Old 01-31-2011, 05:41 PM   #2
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That is plenty of light. it will be very white, you are right. Reefbrite LED would help.
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Old 01-31-2011, 11:49 PM   #3
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Ok cool. I was also thinking.. UVL just came out with new 18" bulbs for the NEP and other 20" Nova fixtures so i'm thinking i would go with those 12k's and then a uvl super actinic bulb, if i decide to go T5. Not sure though... Looking in to what lighting system would give me the best colors for zoanthids.
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