05-28-2013, 11:46 AM
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Originally Posted by gersh10
Yes what I've read was the 12k-24k light was best for reef and the 6500-8k was better for fresh water. They did exchange the 12k for the 8k. I've had the 8k at my 5.5gal aquarium at work for over about two months now and even the fish seem to like it more since they are out swimming around all the time. When I had the 12k on this tank for any length of time the fish stayed hidden most of the time.
I've called and talked to the company and they tell me their lights do not promote nuisance algae.
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Sadly, these people are not always honest. After all, they do want to sell their products.
The 8000K would be better, so that is not surprising. Kelvin around 5000K to 7000K is shown to promote the best plant growth, all else being equal, and this inhibits algae.