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 Post subject: Re: The 'Puddle'
PostPosted: Jul 17th, '13, 23:26 
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I could arrange for the original pool pump to be activated for a period each day, since it is still connected. That will provide additional water movement and aeration - lots of it, especially if the spa function is turned on.

How would this action lower nitrite levels?

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 Post subject: Re: The 'Puddle'
PostPosted: Jul 17th, '13, 23:37 
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The extra aeration is not to bring down the nitrite levels, but to make it easier on the fish while the nitrite levels are high.

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 Post subject: Re: The 'Puddle'
PostPosted: Jul 17th, '13, 23:45 
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I see, Ronmaggi!

Thank you, R'OZ and Ron'.

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 Post subject: Re: The 'Puddle'
PostPosted: Jul 17th, '13, 23:51 
Ronmaggi wrote:
The extra aeration is not to bring down the nitrite levels.

Well actually.. it probably will... especially if the pond is under-oxygenated...

Nitrification is an oxidising process... the bacteria need to add another O to the N02... to form the N03 nitrates... :wink:

You'll often see high, or persistent nitrites levels.. fall rapidly once you up the aeration... by adding extra aeration.. and/or increasing.. or running the pumping continuously...

You can see a perfect example here.... viewtopic.php?p=402729#p402729 ... where aquamiami decreased his nitrites from 5.. to zero... in a matter of a few days...


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 Post subject: Re: The 'Puddle'
PostPosted: Jul 18th, '13, 00:23 
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Thanks for your clarification, R'OZ. I don't think the Puddle is under-oxygenated, although I can't be sure since many factors come into play. The fish are all only small, although there are 118 of them. There are seven GBs returning water to the Puddle via three splashing inlets, with a turnover rate of around 9,000 litres per hour. It is reasonably deep, however, in relation to its surface area.
I think my confusion re this continuing nitrite spike stems from my assumption that the Puddle had already cycled, since it has been up and running for many months now. It seems that it has just been quite slow to cycle, probably due to its volume, and is only now sorting out its bacterial equilibrium.

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 Post subject: Re: The 'Puddle'
PostPosted: Jul 18th, '13, 09:49 
PLJ wrote:
I think my confusion re this continuing nitrite spike stems from my assumption that the Puddle had already cycled, since it has been up and running for many months now. It seems that it has just been quite slow to cycle, probably due to its volume, and is only now sorting out its bacterial equilibrium.

That's quite possible...


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 Post subject: Re: The 'Puddle'
PostPosted: Jul 18th, '13, 15:59 
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I agree with Rupe on the additional air/pumping. I would not mess about with adding anymore ammonia, let your bacteria grow naturally; if you want to lift the plants a bit try foliar feeding. You may have slow growth due to highish ph, cooler weather or not enough nutrients entering the system (this I would not try to correct at this stage). GB's are not the only way to increase the biofiltration. :)


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 Post subject: Re: The 'Puddle'
PostPosted: Dec 12th, '13, 02:53 
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I called in to check the Puddle and was pleasantly surprised by the clarity of its water. I could actually see the fish! The Goldfish are growing very well and the Silver Perch are quite a bit larger than when they went in last May.

Plants are struggling to grow in the GB that receives the most sun but the other six GBs aren't doing too badly, with the main 'crops' being Silver Beet, Rainbow Chard and Celery. There is even one juicy fig developing.


Attachments:
File comment: Silver Perch swimming with the Goldfish
Pieces of Gold and Silver.png
Pieces of Gold and Silver.png [ 495.81 KiB | Viewed 1827 times ]
File comment: Goldfish looking fat and healthy
Pieces of Gold.png
Pieces of Gold.png [ 514.33 KiB | Viewed 1827 times ]
File comment: Celery growing well in the company of a Lime
Celery.png
Celery.png [ 585.81 KiB | Viewed 1827 times ]

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 Post subject: Re: The 'Puddle'
PostPosted: Dec 12th, '13, 11:01 
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The puddle is looking really good, no wonder the puddle princess joins you on trips to Great Britain.

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 Post subject: Re: The 'Puddle'
PostPosted: Dec 12th, '13, 12:30 
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Haha, thanks Ron, but it was I who accompanied the Puddle Princess on her annual pilgrimage to her mother country - yes, she is a former Prisoner Of Mother England, who saw the light 13 years ago and moved to Australia. I was very fortunate to have a dedicated companion, tour guide and chauffeur for my brief time in the UK before I had to hightail it home to the never ending needs of my farm.

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 Post subject: Re: The 'Puddle'
PostPosted: Dec 20th, '13, 23:50 
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The Puddle plumbing has been problematic since its inception. Not the drainage system; that works fine, but the pressure side of the equation.

Attachment:
File comment: Hoses hastily reassembled for the photo. (Some tape was reapplied after being taken out of the rubbish bin.)
Original Puddle pump plumbing.jpg
Original Puddle pump plumbing.jpg [ 213.68 KiB | Viewed 1718 times ]


We have been plagued with spontaneous disconnections, nearly always at one of three points. Specifically, these were where I had joined, successfully I had thought, flexible pool hose to PVC pressure fittings. Where they didn't fit directly I employed two sizes of clear acrylic joiners, one inside the other, to join the fittings. Gradually one or another of them would work loose, and after the first blowout the period between fixing and blowing out again became less and less. We were applying more and more gaffa tape each time in order to keep the components in place.

Attachment:
File comment: Source of the problem.
Acrylic adapter fittings.jpg
Acrylic adapter fittings.jpg [ 226.35 KiB | Viewed 1718 times ]


It became apparent that the convenience of being able to haul up the pump when required due to its flexible ribbed piping was now completely overshadowed by the inconvenience of not being able to rely on the plumbing holding together. Most blowouts resulted in the GBs draining completely and the vegies and fruit trees suffering water stress.

Attachment:
File comment: It looks dodgy but will it do the job?
Puddle Princess with new Plumbing.jpg
Puddle Princess with new Plumbing.jpg [ 110.89 KiB | Viewed 1718 times ]


A couple of days ago I invested the time to properly plumb the pump piping - well, improve it at least. It seems fairly cumbersome and I don't like its chances of survival if someone actually goes for a dip in the Puddle, but so far so good. :)

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 Post subject: Re: The 'Puddle'
PostPosted: Dec 21st, '13, 00:16 
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Finally a pic of the Puddle Princess! :cheers:

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 Post subject: Re: The 'Puddle'
PostPosted: Dec 21st, '13, 01:31 
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If the Puddle Princess was to ever read this thread she would be disappointed that you don't remember her from about page 3 or 4, Ron. She also featured in my other system thread where she dived in my big tank in mid winter in search of a missing thermometer.

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 Post subject: Re: The 'Puddle'
PostPosted: Dec 21st, '13, 01:34 
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Found it, page 3. I must have glazed over the early photos.

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 Post subject: Re: The 'Puddle'
PostPosted: Dec 21st, '13, 01:42 
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Regarding the troublesome flexible pipe plumbing above, in retrospect I should have tried Sleepe's suggestion of using Silastic. If I recall correctly, my concern at the time was that I would have needed to 'glue' each end of the paired acrylic sleeves - one end into a PVC fitting and the other onto a flexible hose. I wasn't sure it would work because it was different situation - all the more reason why I should have given it a go. :angry7:

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