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Old 06-18-2012, 05:38 PM   #11
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Also keep in mind the home depot light is not intended to be hung over saltwater and its not resistant to water or corrosion. When it corrodes it can leech heavy metals into the water.

And as stated the bulbs need replaced and for nems you will need minimum 4 bulb. Actually you may have problems with only a 4 bulb depending on depth
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Old 06-18-2012, 05:45 PM   #12
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The bulbs that come with the lights, are they by good enough or safe for reefs?
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Old 06-18-2012, 05:48 PM   #13
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No they are not ok
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Old 06-18-2012, 06:09 PM   #14
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What makes them so bad? The Kelvin of the bulbs?
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Old 06-18-2012, 06:18 PM   #15
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Yes it is the kelvin of the bulbs. The bulbs probably are only 3200k or 4100k you want 10K plus and actinics if you have corals. I found a nice 2 foot 4 bulb fixture on HD's website that might be better ill post the link.
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Old 06-18-2012, 06:25 PM   #16
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They have a 48in 4bulb fixture as well it cost 120 instead of 90. I think the bulbs that come with these are around 10k but its specified nowhere.


2 ft. 4-Bulb T5 High Output Fluorescent Grow Light Fixture-V24 at The Home Depot
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Old 06-18-2012, 08:58 PM   #17
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Thanks for the advice! Yeah, the only reason I wanted go buy their 4ft lights r because try were only 40 dollars which is extremely cheap. But now that I know that the bulbs aren't good enough, I probably might just leave it alone.
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Old 06-18-2012, 09:54 PM   #18
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Quote:
Originally Posted by Grizz
I'd go with 2 or 3 you'll be better off with at least 200 watts Change the bulbs though as the stock bulbs are warm (6500 K) color and will grow algae like mad
Not true. Natural sunlight is what many corals use. Excess algae comes from excess nutrients in the system. Not the wrong color rating.
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Old 06-18-2012, 10:04 PM   #19
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Quote:
Originally Posted by TrollI

Not true. Natural sunlight is what many corals use. Excess algae comes from excess nutrients in the system. Not the wrong color rating.
Your right and your wrong. 6500k is not natural sunlight underwater. Yes algae is the result kf nutrients however with 6500k lighting it doesnt matter if your test kits read 0 you will grow algae. 6500k promotes algae growth hence why it is used to grow macro algaes in refugiums.

Color has lots to due with algae growth. Its the reason halide, t5, and PC bulbs need replaced on an annual basis. Because old bulbs change in color spectrum.
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Old 06-18-2012, 10:49 PM   #20
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I know that the bulbs that come with the light fixture aren't good enough for the tank, but I feel like it would be such a waste to just change them when you just get them.
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