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SpaceOps
12-30-2014, 11:27 PM
I got tired of waiting for my DSB to kick in, so I set up an algae scrubber. I couldn't find a single LED grow bulb up here, so I started with a daylight CFL. I live in a place where we have very few shopping options, so I tend to do a lot of shopping online--Amazon, etc. I went back to good-ol' Aliexpress.com and found multiple vendors selling combo red/blue LED spotlight bulbs. I ordered six 10W red/blues with an E27 base (fits in the standard American lamp bulb base) at $3.49 each, shipping included. They've since gone down a little. They look small, so I may be able to squeeze two over the scrubber. A 10W LED is probably roughly equivalent to an 80-100W incandescent grow bulb.

Here's what I ordered: http://www.aliexpress.com/item/1pcs-E27-Lamp-10W-6-Red-4-Blue-5730-10-LED-Grow-Bulb-Light-for/32213440349.html. I found a similar bulb on eBay for $7, also out of China, but they don't ship to AK or HI. Strange...

I ordered them Dec 20th and they're just now leaving Shanghai airport. Such is the downside of living in Sportsman's Paradise.

I didn't have any additional sump space for the scrubber, so I put a glass panel over the DSB on some rocks, leaving about 1/2" below the panel for water to flow under the glass and over the DSB. I clipped the roughed-up plastic grid on top of the glass panel. The glass is sloped so a film of water flows across the grid and into the return pump & skimmer chamber. I also modified the drain pipe from the main tank to make a tee with small holes that distributes the water across the scrubber. Looks like it'll work fine, plus it'll remove easily for cleaning.

http://i53.photobucket.com/albums/g46/coloradorocket/DIY/Scrubber1.jpg

Levi
12-31-2014, 10:59 AM
I got tired of waiting for my DSB to kick in, so I set up an algae scrubber. I couldn't find a single LED grow bulb up here, so I started with a daylight CFL. I live in a place where we have very few shopping options, so I tend to do a lot of shopping online--Amazon, etc. I went back to good-ol' Aliexpress.com and found multiple vendors selling combo red/blue LED spotlight bulbs. I ordered six 10W red/blues with an E27 base (fits in the standard American lamp bulb base) at $3.49 each, shipping included. They've since gone down a little. They look small, so I may be able to squeeze two over the scrubber. A 10W LED is probably roughly equivalent to an 80-100W incandescent grow bulb.

Here's what I ordered: http://www.aliexpress.com/item/1pcs-E27-Lamp-10W-6-Red-4-Blue-5730-10-LED-Grow-Bulb-Light-for/32213440349.html. I found a similar bulb on eBay for $7, also out of China, but they don't ship to AK or HI. Strange...

I ordered them Dec 20th and they're just now leaving Shanghai airport. Such is the downside of living in Sportsman's Paradise.

I didn't have any additional sump space for the scrubber, so I put a glass panel over the DSB on some rocks, leaving about 1/2" below the panel for water to flow under the glass and over the DSB. I clipped the roughed-up plastic grid on top of the glass panel. The glass is sloped so a film of water flows across the grid and into the return pump & skimmer chamber. I also modified the drain pipe from the main tank to make a tee with small holes that distributes the water across the scrubber. Looks like it'll work fine, plus it'll remove easily for cleaning.

http://i53.photobucket.com/albums/g46/coloradorocket/DIY/Scrubber1.jpg

http://www.aliexpress.com/item/10pcs-lot-3w-full-spectrum-led-grow-chip-broad-spectrum-400nm-840nm-led-diode-for-MJ/32213725776.html

I found this interesting, 3w LED diodes that are full spectrum

SpaceOps
12-31-2014, 11:28 AM
Yeah, but it's labeled for MJ grow. I'm growing algae only!

Levi
12-31-2014, 01:25 PM
Yeah, but it's labeled for MJ grow. I'm growing algae only!

All grow lights are for "plants" algae, MJ, tomatoes, its all the same spectrum that is most beneficial for photosynthesis.

SpaceOps
12-31-2014, 02:31 PM
Seriously, dude, it was a joke.

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SpaceOps
01-01-2015, 07:16 PM
http://www.aliexpress.com/item/10pcs-lot-3w-full-spectrum-led-grow-chip-broad-spectrum-400nm-840nm-led-diode-for-MJ/32213725776.html

I found this interesting, 3w LED diodes that are full spectrum

I don't know. The picture doesn't give any hints, but I'm guessing the blue spike is from the LED itself and the broad emission in the green/yellow/red region would be from a phosphor. I did notice the red emission peaked in the low 600nm range instead of ~660nm where it'd be more useful for photosynthesis. Overall, I'd think plants would like it. Why don't yo buy a batch and evaluate them?

Levi
01-01-2015, 07:17 PM
I'm not going to diy, decided just to get 4x grow panels for my scrubber

SpaceOps
01-01-2015, 07:23 PM
Four????? Holy... Should I ask what you're growing?

Just_Tim
01-01-2015, 10:58 PM
Four????? Holy... Should I ask what you're growing?

"Colorado Algae"

Campbell
01-01-2015, 11:00 PM
^ Apparently we do have the best algae


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Levi
01-02-2015, 08:47 AM
https://www.amazon.com/dp/B00MVFVCXG/ref=cm_sw_r_awd_u9QPub1Q5DFY3

SpaceOps
01-02-2015, 11:05 AM
Wide variety of other options too:

http://www.aliexpress.com/wholesale?catId=0&initiative_id=SB_20150102085947&SearchText=hydroponics+led

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Levi
01-03-2015, 10:01 AM
I don't want high wattage. Everything I have read shows high wattage killing the algae and lower wattage working great. I was going to just do led 5050 smd strips

Murfman
01-03-2015, 10:18 AM
I don't want high wattage. Everything I have read shows high wattage killing the algae and lower wattage working great. I was going to just do led 5050 smd strips

I ran 50W floods on my TAS. 75s killed the algae but 50s kept it growing fast.

Levi
01-03-2015, 10:19 AM
Yeah the panels I like are 20W each of leds so not sure how that translates to other types of bulbs

SpaceOps
01-03-2015, 12:02 PM
I ran 50W floods on my TAS. 75s killed the algae but 50s kept it growing fast.

Photoinhibition

SpaceOps
01-03-2015, 12:04 PM
Yeah the panels I like are 20W each of leds so not sure how that translates to other types of bulbs

Red and blue LEDs produce at least three times the photosynthetic response of full spectrum whites. LEDs are roughly 8-10 times more energy efficient than incandescent. That means the red/blue LEDs are about equivalent to a white incandescent with 30 times more wattage.

SpaceOps
01-18-2015, 08:13 PM
The LEDs finally arrived yesterday after a 4 week wait, but it was worth it. Man, these things are powerful. I put 2 over the scrubber. They measure 1 1/3" across and 2 1/2" long. Here are the pics. I had to go with different exposures to show differnt aspects. http://i53.photobucket.com/albums/g46/coloradorocket/DIY/PlamtLED3.jpg http://i53.photobucket.com/albums/g46/coloradorocket/DIY/a4ebf347-2938-467b-a73f-8adb4d895ea6.jpg http://i53.photobucket.com/albums/g46/coloradorocket/DIY/PlamtLED2.jpg http://i53.photobucket.com/albums/g46/coloradorocket/DIY/PlamtLED1.jpg