basic equipment needed for keeping corals - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
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post #11 of 15 Old 03-20-2008, 08:35 AM
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I hate to hijack the thread away from the original poster, but I have a question that relates to the recent discussions here:

I have a 90 gal FOWLR, so lighting isn't critical for me. However, at some point down the road, I would like to move to soft corals. In preparation, I've bought what I thought was a decent lighting system, the Coralife Lunar Aqualight

http://www.fishsupply.com/slbes-34063.html

however, the 48" module, with four 65W bulbs, puts out a total of 260W, when divided by the tank volume of 90gal, comes out to less than 3W per gallon. This implies that on my tank, even the Coralife Lunar Aqualight would be insufficient for growing softies? I would have to upgrade to either a more powerful kind of light, or I would have to have two complete light strips? Thats unfortunate to hear, I don't want the entire space above my tank taken up by some complex lighting setup, I like the Coralife Aqualight because its all contained in a pretty decent package.

"To an optimist, the glass is half-full;
to a pessimist, the glass is half-empty;
to an engineer, the glass is twice as big as it needs to be"
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post #12 of 15 Old 03-20-2008, 10:22 AM
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would it be bad if i expose my 75 gal tank to direct sunlight ?
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post #13 of 15 Old 03-20-2008, 11:41 AM
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"would it be bad if i expose my 75 gal tank to direct sunlight ?"

I think the danger there is heating up the water... direct sunlight will probably add much more heat to the tank than aquarium lights (though I don't know how it compares to MH).

"To an optimist, the glass is half-full;
to a pessimist, the glass is half-empty;
to an engineer, the glass is twice as big as it needs to be"
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post #14 of 15 Old 03-20-2008, 06:33 PM
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i should also add, that even if being in direct sunlight doesn't heat the water up higher than you want, it very likely will cause temperature variation in the tank. It will be constantly rising and falling as the sun comes and goes, and I believe that is also a no-no.

"To an optimist, the glass is half-full;
to a pessimist, the glass is half-empty;
to an engineer, the glass is twice as big as it needs to be"
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post #15 of 15 Old 03-20-2008, 07:25 PM
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although sunlight would benefit your corals, I would advise against it b/c it will probably cause more algae problems then you want to deal with, and conger, a lunar aqualight will support softies in your 90 gallon without a problem : )
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