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View Full Version : Considering nano LED ATS?



cbehr
02-24-2012, 10:56 AM
In the proces of building a 25g nano with most likely a very small 5.5g sump. I'd like to incorporate a scrubber and figured with a tiny screen I could possibly do LED lighting for a decent price. I've been looking around a bit but haven't seen much on nano LED ATS's. I'd like to even use one drive if possible?

I'm also concerned about building an arylic/glass protection box around the screen. How much light does this block as I'm assuming it doenst take long for salt etc to build up on it?

SantaMonica
02-24-2012, 02:09 PM
One drive?

srusso
02-24-2012, 06:31 PM
One drive?

I think the OP means one driver. Aprox 7-8 LEDs

SantaMonica
02-24-2012, 06:46 PM
Scrubbers are now sized according to feeding. Nutrients "in" (feeding) must equal nutrients "out" (scrubber growth), no matter how many gallons you have. So...

An example VERTICAL waterfall screen size is 3 X 4 inches = 12 square inches of screen (7.5 X 10 cm = 75 sq cm) with a total of 12 real watts (not equivalent) of fluorescent light for 18 hours a day. If all 12 watts are on one side, it is a 1-sided screen. If 6 watts are on each side, it is a 2-sided screen, but the total is still 12 watts for 18 hours a day. This screen size and wattage should be able to handle the following amounts of daily feeding:

1 frozen cube per day (2-sided screen), or
1/2 frozen cube per day (1-sided screen), or
10 pinches of flake food per day (2-sided screen), or
5 pinches of flake food per day (1-sided screen), or
10 square inches (60 sq cm) of nori per day (2-sided screen), or
5 square inches (30 sq cm) of nori per day (1-sided screen), or
0.1 dry ounce (2.8 grams) of pellet food per day (2-sided screen), or
0.05 dry ounce (1.4 grams) of pellet food per day (1-sided screen)

High-wattage technique: Double the wattage, and cut the hours in half (to 9 per day). This will get brown screens to grow green much faster. Thus the example above would be 12 watts on each side, for a total of 24 watts, but for only 9 hours per day. If growth starts to turn YELLOW, then increase the flow, or add iron, or reduce the number of hours. And since the bulbs are operating for 9 hours instead of 18, they will last 6 months instead of 3 months.

HORIZONTAL screens: Multiply the screen size by 4, and the wattage by 1.5Flow is 24 hours, and is at least 35 gph per inch of width of screen [60 lph per cm], EVEN IF one sided or horizontal.

Clean algae off of screen every 7 to 14 days, so that you can see the white screen material.

For LEDs, you might try half the wattage listed above.

I don't think the splash shields have much effect.

kotlec
02-25-2012, 01:13 AM
You can check mine for ideas . It is sumpless design though and now it is LED.

http://youtu.be/tbcyNs_-3GU

cbehr
02-25-2012, 04:07 AM
Thanks for the responses! Yes, I did mean "driver" sorry for the typo. It's difficult to determine how much I'll feed the tank as I have not determined my livestock yet....but I'm thinking it won't exceed one frozen cube per day so I thought I'd be safe with the vertical 3x4 screen that will most likely bed fed from the overfllow.

Thanks for the video link, anyone else have a nice little setup?