Led light watts

**AngGuKueh** · 11th May 2011, 18:47

Hi bro, anyone out there can help me solved this ?

I got a 120 gallon marine tank with sps and clam and the measurement of light is 3-5 watts per gallon if I custom made the Cree LED super bright 10000k white and royal blue 450nm light issit I also must go for that wattage or can be lower example to half of the wattage.

Ratio of the led light how many white and how many blue should I get ?

The wattage counted with white and royal blue together or jus count for white only ?

**neverwalkalone** · 11th May 2011, 22:57

Hi bro. I think you'll be able to get all your info in another forum : reefcentral.com, under "DIY" forums n "Lighting" as well. They specifically cover Marine tanks and there are literally thousands of posts covering this topic.
Most of the threads here are on Freshwater aquariums, though I'm sure there a quite a few experts in the Marine area that may advice you.

From my limited knowledge (I just completed my LED build for FW scaping), you'll probably settle for 48-60 (upper end is 96) LEDs, with 50:50 of Cool whites n Royal Blues. The most common (recommended?) LEDs are 3W Cree XP-Gs n XP-Es resp. Your layout of corals/rocks etc and how you intend to hang the lights, optics, spacing bet LEDs, drive current etc are all considerations.

I am not into Marine tanks (yet?

) but I don't think the 3W per gallon rule applies. In any case, once you're in LED territory, that guide goes out the window anyway! You'll find many helpful posts at RC with PAR readings that actually makes more sense. Those guys are really something!

Hope this little bit of into helps.

**AngGuKueh** · 11th May 2011, 23:33

Wow thank alot bro for provide me so many tip and trick too.

**neverwalkalone** · 12th May 2011, 12:35

no worries. We are all learning and helping each other here.

Do share your build once it's done; I've always enjoyed watching Marine fishes and want to have a Marine Tank, but it's too much work to do it now (not to mention $s..

).