"Pszemol" wrote in message
...

Do you have the sump/overflow ?
This kind of setup is great for skimming the water surface.

No---I have a basic system: Just a Skimmer and a bunch O`rock. Should I
get a 3rd powerhead to aim up at the surface to break it up?
I was actually pondering adding a 20 gallon refugium for under the cabinet.
I have a basic tank, I would need an overflow box for that, right? How do
you prevent floods, by not filling the refugium to capacity?