Salminus Franciscanus (Golden Dorado)

jaws7777

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One good way to effectively run an anaerobic filter in my experience is a deep sand bed, but you need a large volume for it.

I was going to try that next but was all diy'ed out lol and a bunch of other members said they tried and it never worked for them in fresh water
 

Reedmaster16

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Traditional japanese koi ponds uses live rocks and anaerobics in the filter.
Today's filter kinda forgot about the importance of anaerobics. High flow with lots of air as seen in waste water management and fish farming is what I see in today's aquaria/pond. This process known as degassing allows the bio media to touch air creating a thin film process. However, the high oxygen makes it hard the cultivate anaerobic bacteria.
I've built many ponds for others and have maintained them for years. I have observed the difference in growth and color based on the type of filters. Traditional appears to be better which is what I'm trying to duplicate.
The conclusion is, know what you want out of the filter you are incorporating. If you got high load, then perhaps you do want a fish farm approach of tumbling media with air. Balance is key. Don't just build a great filter only to produce more nitrate. Proof is in the fish.
Anammox bacteria being very sensitive to oxygen and nitrite is a great point to highlight.

Also the slow growth rate of anammox combined with the flexibility of aerobic ammonia oxidizers - able to grow in anoxic environments. Could make it more difficult to cultivate and balance an ideal level of anaerobic bacteria.

The age & proper design of those older systems could definitely be a big factor - filtration/environment having long time to form a stable balance between the aerobic and anaerobic ammonia oxidizers.

Fantastic points as always. I would really like to go into detail on this with you. Let me know (email/PM) and I can start a new thread if you want. Don't want to clutter up or derail your wonderful growout progression too much.
 
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kendragon

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Anammox bacteria being very sensitive to oxygen and nitrite is a great point to highlight.

Also the slow growth rate of anammox combined with the flexibility of aerobic ammonia oxidizers - able to grow in anoxic environments. Could make it more difficult to cultivate and balance an ideal level of anaerobic bacteria.

The age & proper design of those older systems could definitely be a big factor - filtration/environment having long time to form a stable balance between the aerobic and anaerobic ammonia oxidizers.

Fantastic points as always. I would really like to go into detail on this with you. Let me know (email/PM) and I can start a new thread if you want. Don't want to clutter up or derail your wonderful growout progression too much.
Bring it on Reed.
The intent of my threads like this one is to share and not prove right or wrong. I might be doing something unconventional but if it works I will continue. I try to keep the threads running for a while to hopefully show validity on my observations.

You might be able to share areas in ray keeping which I have no experience in due to my location. I do troll that area but will keep it to myself. Ray keepers spend big dollars on their collection and the last thing they need is for someone with no experience giving them advice. I know it's an open forum.

Most comments on this thread are "nice" or "too fat" which doesn't contribute to learning or elevating the hobby. So I continue to post photos which many are probably tired of.
 

Reedmaster16

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Bring it on Reed.
The intent of my threads like this one is to share and not prove right or wrong. I might be doing something unconventional but if it works I will continue. I try to keep the threads running for a while to hopefully show validity on my observations.
You might be able to share areas in ray keeping which I have no experience in due to my location. I do troll that area but will keep it to myself. Ray keepers spend big dollars on their collection and the last thing they need is for someone with no experience giving them advice. I know it's an open forum.
Most comments on this thread are "nice" or "too fat" which doesn't contribute to learning or elevating the hobby. So I continue to post photos which many are probably tired of.
Love it. I'm 100% onboard with your philosophy of pushing the hobby forward through good information. Seems to be getting harder and harder to find and spread these days with the current state of the internet. Please correct me anywhere I'm wrong - I want to get a basic outline of information to build on first.

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Nitrification Cycle
Fish waste and uneaten food is converted by bacteria and fungi to ammonia. Specific bacteria colony in bio filter consumes this ammonia and converts to nitrite. Another bacteria colony then converts nitrite to nitrate.

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Good bacteria both aerobic & anaerobic will grow and shrink (at different rates) based on the available ammonia then nitrite from bio load. This would lead me to think that a balance in surface area of different bio media types could be needed.

In order to promote anaerobic ammonia/nitrite oxidizer growth - too much oxygen rich K1 or similar could be an issue. Aerobic bacteria consuming all available ammonia/nitrite before anaerobic oxidizers have opportunity to feed and grow.

Balancing this with an increasing bio load (fish growth -> feeding volume increase) is where it can get tricky. Its harder with high metabolism fish like rays or rapid growth/waste producers like catfish. Large water volume can help smooth some things over but not an option for most.

Real Momotaro Bac House media in a shower filter has always sounded like a best of both worlds solution. Claims that it is porous enough to house anaerobic bacteria in shower configuration seems unlikely but I cant confirm or deny. Small K1 chamber followed by submerged jap mat or porous media makes more sense to me. But the oxygen concentration in the chamber following the K1 still feels like it would be too high to promote sustainable anaerobic growth.

As a koi filtration jedi master I know you've seen these types of configurations a lot :). Would love to get a discussion going here with your thoughts.
 

Troy1015

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Reedmaster16 Reedmaster16 and kendragon kendragon this is why I think many of us enjoy kens threads and mfk. Always seem to learn something. They continue to help others and are informative.
 

DB junkie

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There are NO 2 peope on this entire site that I can thank more then Kendragon and Reedmaster16 for my current progress on making my filtration better.......

Can't think of any 2 guys I'd enjoy talking filtration with more..... Both of you have taught me so much over the years......

Can't thank you guys enough.

Now back to listening to you 2........ :)
 

DB junkie

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Can I request an interpretter before all this scientific stuff makes my head explode?

I need to know what to build quick.... I have a 750 on its way into the house and I would love to employ Jedi filtration.....

Due to space constrictions I was thinking bead filter to bacteria house in a wet/dry tower that has a moving bed in the bottom. Once I recieve thumbs up from both Jedi's I'll get to work.....
 
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Reedmaster16

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Can I request an interpretter before all this scientific stuff makes my head explode?

I need to know what to build quick.... I have a 750 on its way into the house and I would love to employ Jedi filtration.....

Due to space constrictions I was thinking bead filter to bacteria house in a wet/dry tower that has a moving bed in the bottom. Once I recieve thumbs up from both Jedi's I'll get to work.....
I want to hear what Ken's thinking first.
But with stingrays - my general mindset has always been to remove as much waste as possible from the water column ASAP. Their metabolism and waste production leads to DOC buildup faster than other fish. Primary reason why changing water more frequently is a requirement. Physically removing bad dissolved organics from water column with the water change. Which could make the growth and balance of anaerobic ammonia & nitrite oxidizing bacteria more difficult to sustain?
Also less margin for error the smaller the volume of water.
 
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