My nitrates test in the 0-2 ppm range. I don't chalk it all up to the skimmer though, I also use planted sumps
that I believe use nitrate too. But I believe the skimmer takes out a lot before it has a chance to break down into nitrate. My only other filtration (other than the skimmer and planted sumps) are filter bags for the mechanical end.
That is what I had in mine too!! Have a sump with plants or have some plants inside the main tank and also have a protein skimmer working. I agree Duanes, the skimmer probably does 75% of the work and the plants tank care of the rest.
That is what I said too, finally my idea of using a skimmer for a FW setup has some validation, did you all see all the gunk that Duanes is pulling out of his tank?? I am gonna try to set mine up soon, but I need a return pump.
water is pumped thru a venturi valve (the thing with the vertical tube)
It is mixed in the colummn (about 2 ft tall).
Fractionated water moves down, and bubbles that are the interphase where DOC (proteins etc) collect and are pushed up
The "mostly" clean water effluent travels down the column and back up into the tank,
I believe the plans are still available on the AFM site, Mr Meyers article is much clearer and more eloquent than I could ever be. It's worth the trouble to find.
Duanes can you elaborate on the salt content of the cichlid tank? I'm no cichlid guy, but am under the impression that most cichlids require some salt.....