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  • Results 1 to 5 of 5

    Thread: Water changes, maybe batch processing pp?

    1. #1
      JohnJ is offline Junior Member
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      Water changes, maybe batch processing pp?

      Iím almost done planning a 30k ish pond. Iím on a residential lot and my water bill can get up there. Iím not supposed to have a shallow well even though that would be the best solution and I might just dare someone to catch me ďoh that pump and pipe is for the pondĒ. 15% of 30k is 4500 per week or an additional $100 on the water bill.

      Iím considering using the irrigation water supply,

      or building a side tank to filter with pp at a concentration I wouldnít risk with the koi present but enough to hopefully reset the water. I do understand itís a subtractive process and Iíd have to have a way to reconstitute trace minerals anyway as theyíre depleted.

      Even if the pp solution isnít a silver bullet, could it augment my need for water changes?

      Koi are currently kept on my other property with a near greenhouse level well in a 5k tank. Theyíre water is turned over every few days lol. Iím going to miss that.




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    2. #2
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      This is a large fish pond. Water exchange rates should be determined by fish stocking and feeding rates. If you are not going to push the limits of a pond this large no need for a high weekly exchange rate.

      Best information for treating pond water with PP and reuse are on Dr. Roddy Conrad's threads.

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      https://www.koiphen.com/forums/showt...ance-practices
      Last edited by batman; 2 Weeks Ago at 11:24 AM.
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    3. #3
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      I am not an expert on what PP will convert. Questions I have asked in the past about nitrate removal were answered PP will not remove or breakdown. Not sure about phosphorus compounds and PP reactions. Other organic pathogens it should oxidize. I'd get an water experts opinion on how safe irrigation water is in your district
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    4. #4
      JohnJ is offline Junior Member
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      Quote Originally Posted by batman View Post
      This is a large fish pond. Water exchange rates should be determined by fish stocking and feeding rates. If you are not going to push the limits of a pond this large no need for a high weekly exchange rate.

      Best information for treating pond water with PP and reuse are on Dr. Roddy Conrad's threads.

      This is one of many.
      https://www.koiphen.com/forums/showt...ance-practices
      Ty, yes Iíll eventually be stocking even that much water heavily. I know how to calculate fish weight and derive feeding levels. Iím currently feeding about 2-2.5 lbs a day. I could see in this future pond feeding as high as 20 lbs. Iím intending to run two max size rdfís and 30+ cu ft of rio type media. The mechanical and bio will be sound for load, but I worry about the almost mythical horemones or whatever. I can always add minerals and I was even toying with the idea of running nft gardens to knock down nitrates.


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      JohnJ is offline Junior Member
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      Quote Originally Posted by JohnJ View Post
      Ty, yes Iíll eventually be stocking even that much water heavily. I know how to calculate fish weight and derive feeding levels. Iím currently feeding about 2-2.5 lbs a day. I could see in this future pond feeding as high as 20 lbs. Iím intending to run two max size rdfís and 30+ cu ft of rio type media. The mechanical and bio will be sound for load, but I worry about the almost mythical horemones or whatever. I can always add minerals and I was even toying with the idea of running nft gardens to knock down nitrates.


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      That thread was perfect. I was thinking I needed to ďisolateĒ batches of water to recondition and sterilize before putting it back in, but that seems like literal overkill given Roddys success with doing it in pond.


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