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bunson
PostPosted: Apr 27th, '13, 15:44 
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Exactly what stock density are you going aiming for? If you know the density, then you'll know the O2 requirement, then you'll have a better idea of how much O2 you need to get dissolved in the water and therefore the best method to achieve this. Also, what is the water temperature range you're expecting?
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Simonbradybunch
PostPosted: Apr 27th, '13, 16:09 
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Is 1 kg of fish to ten litters of water possible
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bunson
PostPosted: Apr 27th, '13, 16:45 
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100kg/m3 !!!

Start here : http://www.earthangroup.com.au/what-is-a-balanced-aquaculture-or-aquaponic-system/
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mantis
PostPosted: Apr 27th, '13, 16:55 
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Simonbradybunch wrote:
Is 1 kg of fish to ten litters of water possible


I think you are dreaming :shock:
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RupertofOZ
PostPosted: Apr 27th, '13, 17:08 
Simonbradybunch wrote:
Is 1 kg of fish to ten litters of water possible

:laughing3:

Don't believe everything you read on the inter-webs.... :D
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bunson
PostPosted: Apr 27th, '13, 17:43 
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mantis wrote:
I think you are dreaming :shock:

You're far too polite ;)
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Simonbradybunch
PostPosted: Apr 27th, '13, 18:17 
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I seen one pound a gallon but it was liquid oxygen injected with a drum filter then a biofilter
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RupertofOZ
PostPosted: Apr 27th, '13, 18:51 
And very probably... Tilapia...
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Simonbradybunch
PostPosted: Apr 27th, '13, 22:14 
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At that pont of time it was but the change it all the time
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RupertofOZ
PostPosted: Apr 27th, '13, 22:26 
But that's a full blown commercial aquaculture operation... and on the suffocating edge....

Backyard aquaponics is a totally different story...
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RupertofOZ
PostPosted: Apr 27th, '13, 22:27 
Simonbradybunch wrote:
At that pont of time it was but the change it all the time

I'd be curious what "other" species they were using...

Whereabouts did you see this system??
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MacGyver
PostPosted: Apr 27th, '13, 23:16 
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Hey you guys,

Check this out:

Algal Reactor for Life Support Systems

http://cedb.asce.org/cgi/WWWdisplay.cgi?7000907

Could a reactor like this be used with a light on to constantly make oxygen day and night? An appropriately sized reactor could produce enough oxygen which can then be injected into the water column.

"A net production of 500 g to 600 g of dry algae per man per day is required for oxygen regeneration, CO2 absorption, water regeneration, nutrient removal and organic waste treatment"

I wonder what that converts to for fish?
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Simonbradybunch
PostPosted: Apr 28th, '13, 05:32 
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It was a hybrid aquaponics system in Florida the said the have done trout bra and doin jade pearch next

It's on YouTube and I don't know how to forward the link from my account to here
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RupertofOZ
PostPosted: Apr 28th, '13, 07:21 
Simonbradybunch wrote:
It's on YouTube and I don't know how to forward the link from my account to here

Just go to your url address bar... highlight the address... copy it... and paste it in a post...

We'll explain how to embed the youtube video in a post later....

Simonbradybunch wrote:
It was a hybrid aquaponics system in Florida the said the have done trout bra and doin jade pearch next

I don't believe them.... :D
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MacGyver
PostPosted: Apr 28th, '13, 10:07 
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Is this the video?

1:50 for stocking density and mention of liquid oxgen

Skip to 3:33 for fish species.

4:45 for drum filter.
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