need advise per the new sizing guidelines

[Fishuntbike]

It's been 2 years that I got into scrubbing but what I followed that time was the old guidelines. Now it seems the new guidelines can get you to a very small screen size and lots of feeding. Can I go the screen size of 5 x 5 (25 square inches) with 23 watts (actual watts) on each side? Below is the picture of my scrubber. This is for a 40 gallon breeder with 20 gallon sump. The water flow is direct from the drain pipe, not sure what water flow I am getting but it is rushing down bigtime.

[SantaMonica]

That would be about 2 total watts per square inch, which is very good. Should be able to handle 2 cubes a day, at 9 hours.

[Ace25]

Did you make that one yourself? That came out VERY nice looking. Probably the cleanest looking CFL scrubber I have seen. Very well done!

[Fishuntbike]

Thanks SM for the quick response. Now I know I am in good shape.

For ACE 25 question....yes I made that scubber from 1/4 black acrylic fits on top my sump. Thanks for the compliment.

LITO

[Fishuntbike]

what about number of days before cleaning ..... is 7 days okay?.....thanks again

[SantaMonica]

14

[Fishuntbike]

Thank you SM, you are the man. I will report after 14 days

[greenmachine]

why 14 days? is that part of the new guidline?

[SantaMonica]

Yes, 7 to 14

[greenmachine]

but why go to 14 days? I was under the impression that any more than 7 days the roots would start to die? Did you discover something new?

[SantaMonica]

Depends on the situation.

[kotlec]

Roots dont have calendar too look for day to start rooting. It happens when light and food can not reach it anymore. So it depends.

[greenmachine]

ok good enough. maybe I will try 14 days and see what the algae look like,just for fun.