Friday, June 19, 2015

well I'm at where I want to be with my water quality after just over 5 weeks my nitrate has never been so low not even with my previous anoxic."

quote from Brian in the UK.

"Hi, well I'm at where I want to be with my water quality after just over 5 weeks my nitrate has never been so low not even with my previous anoxic.

I can only imagine it's all about the size, and with the great growth of the plants it looks great too (even the wife loves it!!)"

Looking at the nitrate I'm saying between 5 - 10ppm (Its hard to see on the photo) and that’s with my bead filter running too, my previous best was 30ppm ish with the old anoxic.

Sunday, June 14, 2015

Cheers Brian QUOTE: “Your Lilly's have came on great I've just got leaves on mine at the moment how many plants is that for that much coverage filter is looking lovely mate makes me want to build my Anoxic Filter bigger.”

Brian Woodcock’s Anoxic Filter after four weeks. The two, yes that’s right, just two water lilies have taken up most of the filters top available growing surface area.

The succeeding photo shows just how high/big Yellow Iris can grow and become root-bound in a BCB. They may become so big and creates such a vast vascular root system in just on season that they will split the BCB’s (Biocenosis Clarification Basket). All this without any fertilizer tabs, just let the plant do what comes natural and utilize the Ammonia ion like they are suppose to.

Sunday, June 7, 2015

The three photos show Brian’s Anoxic Filter in the UK and just after a few weeks now how the plant growth is progressing.

The three photos show Brian’s Anoxic Filter in the UK and just after a few weeks now how the plant growth is progressing.  Just a few years ago hobbyist thought that all aquatic plants needed fertilizer tabs in the form of high nitrogen to accomplish good plant growth. To this day these fertilizer nitrogen tabs are being sold under the supposition that their use is vital if success is to be accomplished with aquatic plants. For container gardening yes, but for pond or aquarium use nothing could be further from the truth.

However, today hobbyist know better, or at least they should know better, than to use any fertilizers in their ponds and/or aquariums. Fertilizers of any kind help accelerate the eutrophication of the aquarium and pond by these artificial substances and therefore increasing unwanted nutrients. These added nutrients will then have a negative effect on the aquatic system but may also have an unpredictable growth on plants and algae. This in turn may need evasive action by the hobbyist to eradicate such insults, like green water or high nitrogen levels leading to cyanobacteria.

Beautiful lush green plant growth can be easily obtainable with the right knowhow and ammonium/ammonia.  The plants must find the ammonia ion somehow and that is just what the BCB’s accomplish in one of their many functions.

The Anoxic Filter, though it can be hidden from on lookers, looks better in the open than hidden away in some darks corner somewhere in the yard like conventional filtration is. It gives hobbyist the opportunity to do two hobbies at once. Water gardening and Koi or Goldfish keeping at the same time. Combining the two hobbies give people the opportunity to enjoy Koi without sacrificing the plants because of their foraging nature.


Tuesday, June 2, 2015

I believe you can never learn too much when it comes to water chemistry and what keeps it livable for our aquatic pets.

Here is an excerpt from a forum that I thought would be interesting for those that need some enlightenment in the bacteria world of explanations. Though you may never use an Anoxic Filter, this microbial explanation of how the Nitrogen Cycle works and how and Anoxic Filter works is quite interesting. I believe you can never learn too much when it comes to water chemistry and what keeps it livable for our aquatic pets.

Originally Posted by Feline View Post
I think the issue with the nitrate would be that Bryan's current filters are consuming his ammonia very well currently producing nitrite and then nitrate as the end product. Adding a small amount of anoxic filtration would mean that SOME of the ammonia would be dealt with without producing any nitrate, so the overall nitrate would be a bit lower, but the anoxic filters can't actually take the nitrate made by the 'normal' filters and do anything with it. The anoxic filter would have to compete with the other filters for ammonia to use. Bryan's set up doesn't sound ideal as an only filter, so he wouldn't have the option of turning off the traditional filter.

Maybe Manky can explain for us which filter system 'wins' the ammonia when you have anoxic and traditional media competing for it?

That's a hard one Lara,

But I'll try to explain all your points and what I think will most likely happen when ammonia is shared between the two filters, starting with the basics. I'll skim over them just to avoid making this too long but I'll expand or explain any point if anyone wishes.

Conventional (nitrogen cycle) filtration, very, very roughly, takes one ammonia molecule, four oxygen molecules and seven carbonate molecules into the cycle and, after the bugs have done their job, there is one nitrate molecule excreted as a waste product.

Between the two main species of bugs we could say that, in round numbers, one ammonia becomes one nitrate.

Anoxic filtration is far more complex, and depends on the exact species of bugs and conditions in the basket, which is why I warned about altering the recommended design too much.

Biocenosis baskets attract ammonia in towards the Laterite. Bugs within zone C switch to (my favorite expression) the dimorphic metabolism of facultative anaerobic.......(yeah that one). They use the ammonia directly as a nutrient. Plants in planted baskets use ammonia as a nutrient. The Laterite also attracts in nitrate (NO3) and phosphate (PO4). Them facultative bugs also need oxygen so they steal it from nitrate and phosphate.

What all that means is that nothing comes out except nitrogen gas. Nitrogen gas is harmless and your pond is full of it anyway so this extra amount is gassed off just like excess carbon dioxide from fish respiration.

So that's a very basic overview of how each system works. I hope it also helps explain why conventional filtration starts with ammonia and ends with nitrate whereas a biocenosis basket takes in ammonia, nitrate and phosphate but only puts out nitrogen gas.

If you put a fully mature conventional biofilter alongside a fully matured (and full size, not just a few baskets) anoxic filter then I would need analyze some water samples to give a definite answer but it's reasonable to assume they would each take 50% of the available ammonia.

If a full size anoxic filter would require, say, 40 baskets but you only had four then the four baskets could only do 10% of what 40 baskets would do.

Put any 10% efficient filter, (anoxic or conventional), alongside a filter that could handle 100% and it would only take 10% of the available ammonia. The full size filter would take the rest and an anoxic filter in that situation could only make a 10% reduction in nitrate.

This might help explain why I had reservations about four odd shaped baskets just planted up with cat litter and Laterite. Baskets only work to 100% efficiency if they are built to Kevin's guidelines. Using the wrong size round basket or a kidney shaped basket will do no harm and, of course, there will be some degree of anoxic filtration but the question is how much?

Any reduction in efficiency cannot happen in zones A or B. Reduced efficiency will only occur in zone C, where my favorite bugs live. Even if you were lucky enough to only lose 50% efficiency per basket, put those four baskets alongside a fully mature conventional filter and, at best, you could get a 5% reduction in nitrate. You get twice that much reduction just by minimum normal water changes so is it true to say that the pond is benefiting from anoxic filtration?

To repeat, building baskets incorrectly won't cause any harm but I hope that helps explain why I say either do it correctly or don't expect any noticeable benefit.


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