What science? If the anoxic filtration works, then remove all live plants and let us know what happens to ammonia/nitrite//nitrate and phosphate levels.This is my cabomba, grown in anoxic [low oxygen] filtered water. The water is crystal clear with 0 ppm ammonia and nitrites, and 10-15ppm nitrates, because I have about 300 +guppies in my 50gal tank. My nitrates will be zero if I reduced my guppies to about 10
Anoxic filteration has quite a lot of science in it. Basically it converts ammonia/ammonium to nitrite to nitrates and nitrogen gas. Nitrification occurs in the oxygen rich zones in the outer/upper part of the filter medium. As the water is drawn to the inner zones, oxygen levels drop as they are being used up by the outer nitrifying bacteria.Under very low oxygen levels, or anoxic conditions another group of bacteria will use the oxygen in the nitrates[NO3] converting the nitrates to nitrogen gas. Phosphates gets reduced as well. Phosphates are the main cause of the bba[black beard algae]
In my 40years of fish keeping, going from the basic ug to hang at the back filters, to the canisters filters, sump filters,to the optimum aquarium by dupla with the CO2 , ferric and micro nutrients, bio balls and trickle filters,to the dirted substrate by Diana Walstad, even the ADA stuff by Amano, not missing out the K1 media,I find the anoxic most fancinating and satisfying.
While most are expensive, the Walstad method was quite good but very limited to plants and very small fish population.
In the anoxic system I get max plants and alot of fish.
I think i switched to anoxic probably a year and half plus.I watched a lot of videos on it and it seems so promising. Your cabomba look incredible, lush green and healthy . I always wanted to see a controlled tank where nitrates were high and say an established anoxic canister filter added to see the results. Because nitrates can come from so many sources and be reduced by so many methods I wasn't quite certain. I have a 55 quarantine tank that I wanted to try it in, but my 3 tanks nitrate levels stay relatively within normal range 5-20ppm due to weekly water changes. How old is your tank and how often do you do water changes? Was wondering if maintenance was decreased by this method. Good luck. Seems to be working wonderfully for you
Take a look the the anoxic system used in the ISS for the tish experiment. They refined the system with alcohol as the food source whereas we hobbyists use fish waste here. The whole system in principle is similar with differences in that their components are tailored made, and you bet expensiveI'm not sure what sort of method is being suggested here, but anoxic filtration is used in SW aquarium keeping. I run a sulfur denitrator -- in an chamber filled with elemental sulfur, anoxic bacteria strip off and use the oxygen from the nitrate according to this equation: 2 H2O + 5 S + 6 NO3- → 3 N2 + 5 SO42- + 4 H+. No phosphate reduction with this method, but decent nitrate reduction as measured in the effluent.
Other methodologies add a food (available carbon) source, though I know less about the science at work there, but these are said to harness PO4 reducing bacteria as well.
Eh, we've been doing it in reefs since at least the 1990s.They already did that in the ISS[international space station] 2010 i think.
Biological filter capable of simultaneous nitrification and denitrification for Aquatic Habitat in International Space Station
H.Uemto, T.Shoji & S.Uchida.
All fish and no plants. Anoxic system
Yes, that's analogous to carbon dosing in SW tanks. They use vinegar, or vodka, or biodegradable plastic beads.Take a look the the anoxic system used in the ISS for the tish experiment. They refined the system with alcohol as the food source whereas we hobbyists use fish waste here. The whole system in principle is similar with differences in that their components are tailored made, and you bet expensive
yes, if it is good why not, reducing major waterchanges. More stable water parametersEh, we've been doing it in reefs since at least the 1990s.
This does sort of emphasize the point that it is most practical in space, or in SW tanks, where replacement water is at a premium. In the average FW planted tank, simple water changes are, well, simple.
I know, but the fun is re tweaking like for eg the ug with an ultra slow water flow, plus the fact that it a potential large asset not fully utlised. Careful substrate selection wirh cec is something hobbyists missed.I suggest that a few hours spent on searching this forum for "denitrification" would answer a lot of the questions. It has been explored ad nauseum. Dentrification can be done (I've done it) in a FW aquarium. However, it can only shave a relatively small amount of NO3 and, as someone mentioned, water changes dwarf denitrifiers in their ability to reduce nitrates (if that's what you really want to do in a planted tank). It's simply not worth the effort.
If you have nitrates so high that you need to reduce them, anoxic bacteria are not going to make much of a dent. You would be far better off looking at the source of the problem, which is likely organics issues and, if this is the source, the organics are going to contain a lot more problematic things than just nitrates.
People have been using capped dirt substrates since at least the early 1900's. Aquasoils came on the scene like 25 years ago. You may be a bit behind the curve.I know, but the fun is re tweaking like for eg the ug with an ultra slow water flow, plus the fact that it a potential large asset not fully utlised. Careful substrate selection wirh cec is something hobbyists missed.
Magnets to us are like ad nausem, until neodymium magnets and more super magnets on the way.
My point is can't we take the hobby a few notches higher instead of the same old loco, people are already on maglev.
[What science? If the anoxic filtration works, then remove all live plants and let us know what happens to ammonia/nitrite//nitrate and phosphate levels.] Hmmm ISS curvedPeople have been using capped dirt substrates since at least the early 1900's. Aquasoils came on the scene like 25 years ago. You may be a bit behind the curve.
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