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Old 01-31-2005, 04:36 PM   #1
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Is 520w of power compact lighting enough?

I currently have two of the 4 x 65w CurrentUSA fixtures over my tank, which equates to 520watts total. My question is, is this enough lighting for two clams, some SPS, and soft corals? Do i HAVE to get a metal halide? Do the actinics in this fixture count?

Thanks!
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72 gallon bowfront SW:
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48" Current USA Orbit 4 x 65w
48" Current USA Satellite 4 x 65 w
300W heater
Assorted fish, an anemone, corals, etc
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Old 01-31-2005, 04:47 PM   #2
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I'm anxious to see the pros answers on these. MH aren't going to fit under my canopy and I'd love to just be able to double my fixtures to solve my lighting dilemma. I just don't see that 8 of the same bulbs is going to give you the same light penetration at (in my case) 24" as a MH...

Pros? What say thee?!
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Old 01-31-2005, 05:46 PM   #3
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that is a lot of light. I would say you should be able to keep pretty much anything you want. It really depends on the clams and sps you plan to keep.
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Old 01-31-2005, 08:20 PM   #4
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It really depends on the clams and sps you plan to keep.
There are a few "low" light SPS you could keep-pocillopora,hydnophora, montipora, stylophora, pavona are some. There are also a few "low" light clams also like Derasa, Squamosa. True high light corals like Crocea clams, and Acropora SPS need more intensity then fluorescents can provide. You'll need a HID lamp like MH for those. 520watts provides you w/ many options
By the way Phyl, I've never claimed to be a pro
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Old 01-31-2005, 09:33 PM   #5
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By the way Phyl, I've never claimed to be a pro
No, but hanging around here since August of '03 you've probably read, done or battled many of the issues that us Newbie's are faced with on an ongoing basis! Maybe I should have said Lifers? Long timers? Old Timers? LOL!
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Old 02-01-2005, 11:28 AM   #6
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Any other advice on this topic? If I MUST dish out the money for a metal halide system, I'll do it. I just want to know if this amount of light is enough to make things grow and stay healthy.
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72 gallon bowfront SW:
90 lb Fiji LR
30 lb Tonga LR
90 lb LS
Filtration:

Rena XP3 w/ 1/10hp Arctica Chiller
4 MaxiJet 1200 PHs
48" Current USA Orbit 4 x 65w
48" Current USA Satellite 4 x 65 w
300W heater
Assorted fish, an anemone, corals, etc
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