Join Date: Apr 2016
Location: Central New York, USA
There's a fair amount of popularity for commercial bio-media's like ceramic rings and lava type rocks (like seachem Matrix/De*Nitrate [pumice]). Some is used incorrectly. For example plastic bio-balls were introduced for drip/trickle systems but are mistakenly used in canisters. A key is to provide significant surface area(s) for bacteria colony(ies) to develop. Then there are medias that claim to house anoxic or anaerobic bacteria to convert nitrates into nitrogen gas. These would include Biohome and MarinePure CerMedia (plates or balls). Finally Dr. Kevin Novak phD has published documentation of anoxic biocenosis baskets that claim not only to handle ammonia and nitrites, but also nitrates. It uses simple clay kitty litter and laterite (or Flourish Red) for iron.
Although I'm experimenting with anoxic biocenosis, I kinda gave up on commercial bio-medias and have found the bio-sponge material is every bit as good or better AND much more cost effective. ALL of my filters are filled with sponge material.
If your sump will have a drip system, dollar store nylon pot scrubbies are as good as bio-balls and in the sump proper CerMedia plates, lava rock or BioHome might be worth a try.
Then again, like SW, you might find deep sand with a plenum has value.
Lots of choices and nearly all will work to one degree or another.
Tank On, Mike-
60g Marineland Community, Finnex Planted+ 24/7, Silica (pool filter) sand.
10g, 29g, & 37g fry grow out tanks, 110g stock tank.
What came first, the chicken or the egg. It was the egg, but not the egg from a chicken.
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