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PostPosted: Jul 1st, '13, 22:15 
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Hi everyone.
Today our head chef at work got interested in my aquaponics system, so now just waiting for quotations that I can start spending someone else's money......... I mean start building my next system. For now I'm only going to build a single IBC system that consists of a 700L FT and a 300L gravel filled GB.
I'm going to expand it (or build new system) to a 15000L DWC raft system in our greenhouse if he is happy with the final output. O I hope this works.... might be a start of a new career

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PostPosted: Jul 1st, '13, 22:18 
It's going to take a chef with a lot of imagination... or vision... or just a really free cheque book...

To extrapolate the results from a 300L grow bed... to a 15000L DWC bed.... :lol:


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PostPosted: Jul 1st, '13, 22:25 
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RupertofOZ wrote:
It's going to take a chef with a lot of imagination... or vision... or just a really free cheque book...

To extrapolate the results from a 300L grow bed... to a 15000L DWC bed.... :lol:


Its more about the publicity that we will get with such a system, the whole going GREEN thing.
Here is an article about our greenhouse etc. http://www.farmersweekly.co.za/article. ... ood-garden

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Last edited by Jaco Joubert on Jul 1st, '13, 22:35, edited 1 time in total.

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PostPosted: Jul 1st, '13, 22:26 
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He wants to keep full grown marron in the FT, how much can we stock with a 300L GB?

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PostPosted: Jul 2nd, '13, 19:09 
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O yes, just got approval for the IBC system, now the wait till the IBC arrives.

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PostPosted: Jul 2nd, '13, 20:41 
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Jaco Joubert wrote:
He wants to keep full grown marron in the FT, how much can we stock with a 300L GB?

The only yabbies I had in my sump died after a large water leak but from what I have read it's more about floor space.
Search the forum and there is a lot about yabbies/ red claw killing each other and I assume marron are just as vicious. The reading I just did said about 5-9/sqm is a high stocking rate.
Some suggestions I've seen on the forum include providing a lot of holes for them to hide in using PVC off cuts. Moving these around if they get territorial. Only keeping the same sex. Creating layers in the tank. Even poor water visibility - the thinking bring if they can't see each other they are less likely to fight.


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PostPosted: Jul 2nd, '13, 20:50 
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Happyfarmernt wrote:
Jaco Joubert wrote:
He wants to keep full grown marron in the FT, how much can we stock with a 300L GB?

The only yabbies I had in my sump died after a large water leak but from what I have read it's more about floor space.
Search the forum and there is a lot about yabbies/ red claw killing each other and I assume marron are just as vicious. The reading I just did said about 5-9/sqm is a high stocking rate.
Some suggestions I've seen on the forum include providing a lot of holes for them to hide in using PVC off cuts. Moving these around if they get territorial. Only keeping the same sex. Creating layers in the tank. Even poor water visibility - the thinking bring if they can't see each other they are less likely to fight.


Thanks for the info, thats not very much, he was looking at keeping 30+ males, unfortunatly we cannot get live females in SA. Will do maybe 10 for a start and add lots of pvc pipe for them.

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PostPosted: Jul 2nd, '13, 21:38 
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Also, you can create layers using commercial bread trays - they are plastic and stack and have holes for the food to fall through.
It's all theory to me so hopefully some others can give more advise.
Let us know how you go!


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PostPosted: Jul 2nd, '13, 22:46 
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Happyfarmernt wrote:
Also, you can create layers using commercial bread trays - they are plastic and stack and have holes for the food to fall through.
It's all theory to me so hopefully some others can give more advise.
Let us know how you go!

That's a brilliant idea, will definitely try it.

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PostPosted: Jul 3rd, '13, 17:19 
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If it works I'll definitely be using it in the future.


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PostPosted: Jul 3rd, '13, 18:58 
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are you looking to grow them in size or purely purge and hold them?
if you are looking at purging them only you can have them in much larger densities.
there was a good video put out by the australian marron growers association quite a few years ago but cant find a link.
basically demonstrated the 'middle man' on sellers who get marron from small farmers and sell after purging to market

they used slotted stackable bins with lids allowing no stock mixing and good tracking of any issues and quality, and grading etc


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PostPosted: Jul 3rd, '13, 20:14 
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GUPPYJ wrote:
are you looking to grow them in size or purely purge and hold them?
if you are looking at purging them only you can have them in much larger densities.
there was a good video put out by the australian marron growers association quite a few years ago but cant find a link.
basically demonstrated the 'middle man' on sellers who get marron from small farmers and sell after purging to market

they used slotted stackable bins with lids allowing no stock mixing and good tracking of any issues and quality, and grading etc

The idea would be to have marron in stock at all time, so or we would buy them fully grown and still feed them the bare minimum to keep them alive or if possible we would buy small ones and grow them out.

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PostPosted: Jul 4th, '13, 15:15 
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The first parts arrived, timer and floating thermometer.


Attachments:
20130703_141248.jpg
20130703_141248.jpg [ 35.97 KiB | Viewed 4642 times ]

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PostPosted: Jul 4th, '13, 20:27 
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Got everything else today, just need to get the gravel tomorrow and the I'm in business.

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PostPosted: Jul 5th, '13, 21:44 
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System is done, just have to add the gravel and better quality water on monday. Will add photos over the weekend.

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