crsublette
coyotes call me Charles
That's what i've read about Skippy filters at the Skippy HQ website. Keeping good algae growth on the top of it is a major requirement when using Skippy as a biofilter.Refugium: That's what all those Skippies are, with the green stuff growing on top! So I think people keeping Skippies should all have the top open and in the Sunlight.
Yeah, a big point of the Anoxic filtration as well is that it also acts as an algae refugium. The slow flow in the container is supposed to allow the algae spores to settle and to explode until the algae eventually crashes.
After reading that I also realized I've had that setup for years for my pond. I have a natural waterfall and a stream bed that's about 3 ft long. Even though the stream bed is partly shaded, it grows a lot of string algae during the growing season. When the algae gets too much, I pull it off the bed and dump it under the bushes for fertilizer. So that's my natural algae scrubber: water flowing over a flat surface with light shining on it.
It appears algae scrubbers are the more efficient, more foot print savings, versus an algae refugium except, from what i've understood, scrubbers require more maintenance than a refugium.
I've been doing a little reading about scrubbers and it appears the water is actually fertilized to ensure the scrub pads always maintain algae, after each scrub, and so to ensure the algae does not crash.
Makes me wonder if I could get better efficiency out of my stream algae if I scrape bits of it off on occasionally. Should be pretty easy to scrape it when I mortar it. I think I may put in a piece that acts like a drain for the stream; when not scraping it, then put a cover over it that is camo'd so ya don't see it.