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#1
11-30-2009, 11:02 PM
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I am running 3 x 250w with lumenmax 3's on my 72x30x30 BB. My tank is SPS dominant and even the corals and clams on the very bottom of the tank are doing fine. You should be ok with 250's width and depth wise as the elite reflectors are bigger than the 3's. My only concern would be the length, with 90" to cover you might need to go with 4 x 250.
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#2
11-30-2009, 11:44 PM
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I run 3x250 watt over a 45"x30" area, coverage is good. may want to consider 4. Just my thought.
__________________
There's plenty of room for all God's creatures. Right next to the mashed potatoes.
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#3
12-01-2009, 12:23 AM
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Thanks guys.
Ya I was thinking about running 4 bulbs but am trying to reduce my electricity intake as much as possible. Mr Joshi only uses 3 bulbs on his tank which is 84 x 48, but his bulbs are 400's tho. Good to hear about the depth though.
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#4
12-01-2009, 02:33 AM
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I wouldn't bother with 400s unless my tank was 36" deep or more. 250s are plenty of light for a 22" deep tank with 30" width for SPS provided you take into consideration the ballast/bulb PAR as well as choose a good quality reflector. I would suggest a reflector that spreads the light well to cover the length and width of your tank like a full-sized Lumenarc, Lumenmax or Lumenbrite. Using one of those reflectors and choosing a good bulb/ballast combo, I think you will do quite well with 3x250w.
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#5
12-01-2009, 02:41 AM
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The reflector definately makes a big difference, I am running 3x400w in a coralife fixture over the 300 reef and only 2x175w in lumenmax elite reflectors over the 750 fowlr and to the naked eye the 750 looks just as bright as the reef (even better spread and the 750 has a 8'x5' footprint) I have not tested par values and am sure there is a difference. If I could re do the lighting on the reef I would go 3x250w in the lumenmax elite reflectors.
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