here is a tank with 4 leds tank is only at two weeks old. now i have 12 variety of sps the tank is 10 x 3 x 3. all coral growth is insane. there a 6 leds now total.
this is only the live rock so far. this stuff came with all kinds of life on it. (there is a tiny acan in the bottom right.)
They certainly look bright but until I see some PAR values I will remain a skeptic.
As an aside... is your tank really only two weeks old?
Tom
yes. the tank in that pic is only two weeks old. the live rock was form a lr farmer who overnighted the rock the same day he dove and got it. i was a skeptic. now it is a complete fact. i have about 100 fixtures working already and more on the way. LED is the future until something better comes along...
They certainly look bright but until I see some PAR values I will remain a skeptic.
As an aside... is your tank really only two weeks old?
Tom
yes. the tank in that pic is only two weeks old. the live rock was form a lr farmer who overnighted the rock the same day he dove and got it. i was a skeptic. now it is a complete fact. i have about 100 fixtures working already and more on the way. LED is the future until something better comes along...
lots of stony stuff too
Last edited by carlitofish; 01-20-2012 at 09:43 PM.
Reason: new pic
You have 100 of these fixtures? How many tanks do you have? Are you a LFS?
The unit appears to be physically very similar to the early gen 1 Sunbrites, which used a plastic case and the mega-quanitiy of LED approach. However, Sunbrite used higher end, true color LEDs (Edisons I believe) and were all a sole spectrum in a given tube: options were 10k, 12k, 16k, 22k, 470nm, or 440 nm. I still use a pair of late Gen 1 bulbs in my system (same approach but metal case and improved power supplies in the ballasts).
Your bulbs used a 50/50 mix of 440 nm with a yelow spectrum 5.5k LED. Keep your eye on algae growth with that 5.5k spectrum.
On my 135g (18" across) with early Gen 1 bulbs, I needed 6 to 8 tubes across the tank to keep acros happy long term. However, YMMV! :-)
Detroit's oldest large LED tank! Est'd Jan 2005, went LED June 2009. 6' wide 130g reef, Sunbrite T10 LED tubes (3xGen 3 and 1xGen 1), mostly SPS, but chalices, other LPS, and a few softies too. http://pjr-reef.blogspot.com/
You have 100 of these fixtures? How many tanks do you have? Are you a LFS?
The unit appears to be physically very similar to the early gen 1 Sunbrites, which used a plastic case and the mega-quanitiy of LED approach. However, Sunbrite used higher end, true color LEDs (Edisons I believe) and were all a sole spectrum in a given tube: options were 10k, 12k, 16k, 22k, 470nm, or 440 nm. I still use a pair of late Gen 1 bulbs in my system (same approach but metal case and improved power supplies in the ballasts).
Your bulbs used a 50/50 mix of 440 nm with a yelow spectrum 5.5k LED. Keep your eye on algae growth with that 5.5k spectrum.
On my 135g (18" across) with early Gen 1 bulbs, I needed 6 to 8 tubes across the tank to keep acros happy long term. However, YMMV! :-)
i take care of peoples fish tanks around town. the leds do create algae, but also good coral growth. i only have two tanks. and about ten in my garage that need to get set up lol.
However, I'm officially confused . I think you're posting (and talking about) two different fixtures (a T-8 style and a "box" style fixture). Can you break down the details of each fixture and provide PAR measurements for either or both fixture?
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Originally Posted by Tom@HaslettMI
. I think you're posting (and talking about) two different fixtures (a T-8 style and a "box" style fixture). Can you break down the details of each fixture and provide PAR measurements for either or both fixture?
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