View Full Version : positioning of led light

04-30-2013, 06:26 PM
how high above my tank should I place my light?

04-30-2013, 06:31 PM
Depends on the wattage. I would start with 8 - 10 inches above the water. Make sure you have room to raise it if needed. What lights do you have?

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04-30-2013, 06:56 PM
Dimmable 120W aquarium LED light Full Spectrum 55x3W Lenes Coral Reef growing light

Dimmer One(28 LEDs): Dimmer Two(27 LEDs):

6pcs Warm White(3500-4500K), 20pcs Blue 460nm,

6pcs Neutral White(6500-7500K), 7pcs Royal Blue 450nm.

8pcs Cool White(10000-14000K),

2pcs Green 520nm,

2pcs Deep Red 660nm,

4pcs Violet (400-420nm

04-30-2013, 06:59 PM
Nice! I would mount at 8" and just dim them. Then over time you can turn them up as needed.

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static reef
04-30-2013, 07:06 PM
Well said hooked

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04-30-2013, 07:09 PM
ok so they are about 11 in above but my rocks are getting brown aswell as my sand

04-30-2013, 07:18 PM
That is most likely diatoms. How long has the tank been running?

04-30-2013, 07:27 PM
everything from my transferred over to this 75 plus 30gal sump it is going to be 2 weak this weakend

04-30-2013, 07:29 PM
Very common during this stage. I had a sand sifting goby in mine from a transfer and he cleaned it all up

04-30-2013, 08:07 PM
thanks for the info