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Luke W.
12-06-2014, 01:55 PM
I have a 120 watt dimmable LED light and i am going to mount it on my 38 gallon long fish tank. How high does it need to be? The dimensions of the tank are 36x13x20
Thanks, Luke w.

static reef
12-06-2014, 02:12 PM
Average light height is normally 9"above the water line. Start there and adjust to personal/coral preference.