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Old 05-20-2004, 11:02 PM   #41 (permalink)
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wow, Gomer, you're very lucky to get them for free. they are about 11 bux a piece! i envy you..haha
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Old 05-24-2004, 01:11 PM   #42 (permalink)
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well, it was a wee bit more involved then saying "can I have some for free"

Free in money, still may not be free.
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Old 06-01-2004, 08:11 PM   #43 (permalink)
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update:
Rotala is still stunted in both tanks. I think it might have to do with starting out with "fresh substrate"

Hair grass and both types of pearl grass are really taking the lead in the LED tank.
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Old 06-03-2004, 07:00 PM   #44 (permalink)
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well, doing a little nano tank, so I also had fun with a new LED light *L*

Converted a Zalman CNPS3100 cpu heatsink to mount the LEDs. (probably enough heatsink to passively cool 3x3watt stars instread of the 1watters on right now). Also threw together a quick and dirty DIY contant current source. makes a really nice little "micro halide"!!!!

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Old 06-03-2004, 08:09 PM   #45 (permalink)
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tossed some water in the tank. An anubias nana for color. A little printer paper for backing.

bask in the shimmering glory!

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Old 06-03-2004, 08:19 PM   #46 (permalink)
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haha, saw that at nano-reef.com, i must say, all your DIYs are quite impressive.
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Old 06-18-2004, 09:28 PM   #47 (permalink)
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I think I am going to call this particular end of the study an end. I don't think I need to continue with this exact setup.

here is what I noticed about the LEDs

1)They had a significant advantage over the PCs with HM (2 and 3 leaf). This should be EXTREMELY obvious in the pictures.

2)The LEDs had significant more runners with dwarf hair grass (not obvious in the picture, but ovbious if you looked from above).


3)Neither the LEDs or PCs had possitive results with rotala or glosso. These tanks had virgin substrate, so there was pretty much NO macro nutrients for the roots. All ferts were in the water column. This MIGHT account for the glosso and rotala. I would have to repeat this with mature substrate to confirm.

NEXT: I will move the LEDs to a "normal" environment. I'll get 1 or 2 nanos up and soon enough, the 10g as well.

Comments and suggestions are welcome
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Old 06-18-2004, 10:39 PM   #48 (permalink)
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Very impressive findings, Gomer!

If I could afford something like this right now I would go do it, just because I'm a techno geek and I like good plant growth

Out of curiousity, if you are able to: How much does a system like you tested cost? 24 lights, controller boxes, heat sink, all little extras, etc.
Something like that would be fantastic to put over my tanks, so I am just a little curious :P
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Old 06-20-2004, 11:36 AM   #49 (permalink)
 
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Quote:
Originally Posted by Geo
Out of curiousity, if you are able to: How much does a system like you tested cost? 24 lights, controller boxes, heat sink, all little extras, etc.
Something like that would be fantastic to put over my tanks, so I am just a little curious :P
Unfortunately the cost of gomers system is rather high... But overall it might not be so bad...

www.luxeonstar.com <- where gomer got some of his toys

Star1 emmiters are 11$us each
Xitanium drivers are 30-84$us each - depends on how many emmiters/ options as to which one...

Plus wire, solder, and some sort of heatsink...

Andy
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Old 07-04-2004, 07:49 AM   #50 (permalink)
 
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hate to be late to the party here, but gomer, do you run experiments like this often?
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