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Post by Pokahpolice on Jan 6, 2015 14:45:59 GMT -5
Hey all, been a while since I posted so I figured I'd say hi. Kind of just recently been recharged in my reef addiction. I've been helping my father set up a new Deep Blue Edge57 Rimless tank. Had some issues with the tank during install so it's not set up correctly yet. Once it is, I'll share some pics. |
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Post by oltrevf on Jan 7, 2015 9:25:03 GMT -5
I've been reading your LED questions over on the reefcentral forum. Hope you're having luck figuring it all out.
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Post by Pokahpolice on Jan 8, 2015 10:36:04 GMT -5
I did - the LED is built and I have an Arduino based touch screen controller controlling 5 different channels. The program also fades in and out based on the parameters I set. Pretty slick set up. The only thing I would do differently is pony up the money for Cree LEDs. I'm constantly battling hair algae and I suspect that it's my lighting after a year of trial and error.
There is a thread on here with the complete build that has a ton of pics and description of how it was wired ext,ext.
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Post by gotareef on Jan 8, 2015 11:17:31 GMT -5
sounds great cant wait to see pics of the 57g!
for hair algae...I was battling it aswell. I found my water has a bunch of iron for some reason, guessing thats what the 5 ppm in my ro water is... I changed my di resin and now run polyfilter to remove it from the tank water. now it is dieing and my tux urchin has it about cleaned up
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Post by Pokahpolice on Jan 8, 2015 11:27:21 GMT -5
Iron...huh. I'll look into that. I'm still reading 0 ppm on the TDS so i haven't really thought it was water quality issue but I'll have to look into it. I heavily leaning towards light spectrum at this point. I'm going to swap out the light for a few months to a T5 fixture.
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Post by gotareef on Jan 8, 2015 11:32:10 GMT -5
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Post by oltrevf on Jan 8, 2015 12:14:21 GMT -5
Can you link your description of your LED build? If the spectrum includes a proportionally high amount of 530-650nm wavelength light then it will provide a lot of energy for algae to photosynthesize.
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Post by jasonandsarah on Jan 8, 2015 12:34:55 GMT -5
Can you link your description of your LED build? If the spectrum includes a proportionally high amount of 530-650nm wavelength light then it will provide a lot of energy for algae to photosynthesize. Corals also use 650nm wavelength so it's hard to avoid. Though you are correct if there's to much it can be a bad thing. 530nm on the other hand is a pretty wasted spectrum in a reef tank. Sent from my SM-N910R4 using proboards |
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Post by gotareef on Jan 8, 2015 13:31:21 GMT -5
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Post by oltrevf on Jan 8, 2015 13:31:27 GMT -5
As I understand it including the intermediate wavelengths provide a visual benefit for the viewer but do not encourage coral growth. I found the following article very interesting: www.advancedaquarist.com/2012/10/aafeatureParticularly figures 2,3,4 and 6. The following article indicates that Zooxanthellae is more efficient at utilizing energy between 630-675nm than between 380-480nm. The downside is that color's do not generate pigments to block the long wavelength light energy which possibly damages the corals. Probably because the longer wavelengths of the light are very low energy at depths below 5m in the wild. www.advancedaquarist.com/2014/5/aafeature |
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Post by gotareef on Jan 8, 2015 13:36:54 GMT -5
Can you link your description of your LED build? If the spectrum includes a proportionally high amount of 530-650nm wavelength light then it will provide a lot of energy for algae to photosynthesize. Corals also use 650nm wavelength so it's hard to avoid. Though you are correct if there's to much it can be a bad thing. 530nm on the other hand is a pretty wasted spectrum in a reef tank. Sent from my SM-N910R4 using proboards I wouldnt say wasted... the coral dont use the light and to much can blind your fish but without it your eyes cant see certain colors of the corals |
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Post by oltrevf on Jan 8, 2015 14:16:32 GMT -5
Though 530nm light is about 20nm away from the the wavelength that our eyes are most senstive towards so we do not need much of it to percieve these colors.
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Post by Pokahpolice on Jan 8, 2015 16:13:58 GMT -5
I've read so much about color spectrum and how it relates to corals and algae growth that it almost makes me sick to talk about it. Personally I find it to be the most boring subject ever so reading about it is like watching paint dry....probably why I ended up with a light that has the wrong spectrum. I loved the build and challenge of the controller but I'm WAY over trying to get it right at this point. I'll be purchasing a new light soon.
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Post by oltrevf on Jan 9, 2015 7:48:16 GMT -5
Haha! I enjoy the reading :]. Are you planning to purchase a manufactured fixture?
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Post by Pokahpolice on Jan 9, 2015 8:04:30 GMT -5
Yep
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