works great for me Steve, so 118 Par for the reef tech and that is 2 " from the water line. That is if you had a bare bottom tank right. So people with 2-4 " would get better Par readings correct. Can ya give us a look at by using the par gauge and raising it up 1 " at a time to show us what numbers that you get.
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180 starfire front, LPS, millipora
Doesn't matter how much you have been reading until you take the plunge.
You don't know as much as you think.
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