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Old 09-22-2009, 04:30 PM   #1
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OK ladies and gentlemen, its time now to agree or not, thumbs up or down on this lighting spec for my to be SPS reef tank 8'x2'x2' with a DSB of 4" to 4.5"


The light quote is: for the metal halides - 3 250 watt (Screw in bulbs) (Retrofit reflectors with Reef Optix 1 ballasts. These reflectors allow the heat to dissapate. These lights will be spaced out to equally cover your aquarium, placed in the middle of the tank

For the T-5's: for the backround fill lights I recommend putting 6 48" atinic lights. Placing 4 lights on the front and 2 on the back. These will give you very good fill lights to complement the metal halides. The ballast ( 3 of them) are IceCap units. The end caps are waterproof and also by IceCap. I'm not sure who manufactures the reflectors are by, but they are highly polished units from I think IceCap. The bulbs I was thinking about are 48" 54watt atinic.
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Old 09-22-2009, 04:39 PM   #2
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What was the reasoning behind 3x250 and not 4x150 ? Once you take into account the 4" sand bed you're only at 20" deep.

Other than that, it sounds good.
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Old 09-22-2009, 04:41 PM   #3
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If it was me I would go with 4 MH bulbs. They have a 24 inch footprint which 3 wont cut it. You`ll have some spots that wont have adequate lighting for SPS unless you make sure you have them in the footprints. JMO
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Old 09-22-2009, 05:37 PM   #4
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You will have dark spots using 3 Reef Optix reflectors. You don't get good coverage from that particular reflector. You can, however, easily get full coverage using 3 Lumenarc III reflectors. I personally know of and have seen 2 8' tanks lit by 3 Lumenarcs. 250w is fine for the depth of your tank.

Here's the "Bible" on reflectors.
Analyzing Reflectors: Part I Ė Mogul Reflectors by Sanjay Joshi & Timothy Marks
Analyzing Reflectors: Part II - Double Ended Lamp Reflectors by Sanjay Joshi and Timothy Marks
Analyzing Reflectors: Part III (includes Reef Optix results)
Analyzing Reflectors: 400W DE Reflectors
Analyzing Reflectors: Part V
Analyzing Reflectors: Lumenbrite III, Lumenmax Elite, Lumenmax, and Lumenarc III
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