need help with above tank ats design/sizing/leds

[munson]

Hi scrubbers,I have a 90g with a scrubber in the sump.I would like to put a scrubber above my tank use leds and let it gravity return and let some critters feed the corals.I've been following since the original guidelines,my current scrubber uses the newer by cube sizing w/cfl's..I wondering if there's an ideal size to follow for proper led coverage/spacing. If I move it above my sizing would have to change to more linear than vertical,,so I'm guessing I might have to bump up my power head to cover flow over more length?? any simple trough type container ideas out there that would contain the light,,and simple led ideas/requirements/ Thanks so much for any help,,this forum is so helpful
For diy's

Any links to pics greatly appreciated. Thanks again,,,munson

[SantaMonica]

3 watt LEDs, if 120 degree or wider angle beam (and no lenses), can be 2 to 3" from the screen, spaced about 2 to 3" apart.

A trough just need about 50 ghp per inch of width; does not matter how long it is. Two of these might be good:

http://www.ebay.co.uk/itm/12W-6x2w-2Blue-554nm-4Red-660nm-Hydroponic-Plant-Flood-LED-Grow-Light-265V-/251316467371?pt=AU_Seed_Starting_Hydroponics&hash=item3a83a0f6ab

[munson]

thanks Santa, gph and spacing specs help alot,,along with led link,I wasn't thinkin of an led in a fixture but makes things easier and prob a little safer..how about trough ideas,any easy adaptable pieces out there with minimal fitting
Or is it easier to just glue some acrylic together and make my own???? Thanks again. munson

[SantaMonica]

A large Tupperware plastic box might work, or the plastic storage bins at Walmart. Get a black on, and put LEDs with a heat sink on the lid.

[munson]

sounds good thanks for the help,i was lookin at an old post of yours and really like the acrylic box inside the aluminum ,very clean and the housing is your heatsink,,well thought out ,,I'll let you know how it turns out