The new Upflow Algae Scrubber (UAS)

[acorral]

I plan to enclose the magnets in 2 layers of acrilyc

[dprais1]

Why can't I use incandescent bulbs. either regular or floodlight type?

[acorral]

Why can't I use incandescent bulbs. either regular or floodlight type?

You can use them, only considerations would be using warm light and changing them often to avoid loosing effectiveness

[SantaMonica]

But they make a lot of heat, in order to get the same light levels. You would need 120 watts of regular bulbs to get the same light as a 23 watt CFL.

[dprais1]

right, my problem is a 23 watt CFL is only good for a 6x4 screen. I need to do at least a 8x8 and LEDs can be expensive! if i put a mirror behind the screen will a 23 watt CFL then equal to 46 watts +/-?

[kerry]

Are you feeding over 5 cubes a day? Why such a big screen?
The reflection is not worth much really.

[dprais1]

I would say yes, I'm growing out 11 discus and 2 angelfish. they get about 1/4 to 1/2 tsp of flake food 3-4 times a day, 3-4 cubes of freeze-dried blackworms a day, and 2-3 cubes of beefheart mix a day.

[dprais1]

right now I do 90% w/c about 5x a week

[SantaMonica]

Sounds like 10 cubes. 120 square inches (10 X 12, etc), with at least 120 real watts (60 on each side).

[Floyd R Turbo]

Your helper tried to post the update on the GIRS site today but the link was broken, and I see you haven't posted it here yet? Whatca got for us this month?