Aquaponic Gardening

A Community and Forum For Aquaponic Gardeners

South African Aquaponic equipment sources

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South African Aquaponic equipment sources

With a growing number of South African members, I thought that it may be a good idea to start a page dedicated to finding equipment and consumables for aquaponic systems and to share the information with others in the group. 

Members: 48
Latest Activity: Oct 8

Discussion Forum

Sylvia Bernstein's Book & DVD's and C.R.I. pump available

Started by hendrik barwise Oct 6. 0 Replies

I have Sylvia Bernstein's Book "Aquaponic Gardening" and "Aquaponics Explained" DVD's for sale @ R 1050, vailable at Pretoria East. See The Aquaponic Source (AquaponicGardening.com)Also a new C.R.I.…Continue

info and suppliers

Started by Tony Dippenaar. Last reply by hendrik barwise Oct 6. 10 Replies

good day ..... it seems to me that this group is not very active in South Africa. i'm located in Pretoria and going around and get info for suppliers is not easy in this city. i think getting your…Continue

Still new to the site and enjoy the community

Started by hendrik barwise Oct 6. 0 Replies

Hello..  I'm new to the site and find it very interesting. Also relative new to aquaponics, still learning, not active yet. I'm in Pta. E area at present. Possibility going to Canada for a…Continue

Gettin Started

Started by Alex. Last reply by Adrian M Nov 2, 2015. 1 Reply

Good Day Fellow South African Aquaponics enthusiasts!As you can tell I am new around these woods.I would really like to get into commercial aquaponics, but I’m defiantly going to do a trial run at…Continue

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Comment by John Link on February 10, 2012 at 8:17am

Hey guys thanks for the add!  I'm developing a proposal for a 1000L fish tank, 1 media grow bed, and 1 sump tank system to start our pilot program.  The plan is, after initially cycling and stabilizing the system, to add redundancies and efficiencies.  So our pilot will only have about 15 tiliapia to start for the one grow bed and our goal is to increase that number to 40 by adding adequate aeration, filtration, and solar power.  Not sure if anyone knows any viable water sources?  Can you treat water from the grid?  Hopefully there is a large fish feed supplier and you guys know where I can get some?  Last but not least, IBC Tote Containers do they exist in Africa?  Thanks in advance guys/gals

Comment by Eco Owl on November 21, 2011 at 1:05am

Hi All,

 

I have had joy sourcing fish in Gauteng so let me share:

 

Hartebeespoort Fisheries (012-259-3904)

 

Hartebeesporrt Fisheries (012-259-3904)

 

The have lot's of different types of Talapia available including Mozambique Talapia at the following prices:

 

4-6cm R 1,20ea

6-8cm R 1,50ea

8-10cm R 2,20ea

 

Kind regards,

 

Eco

 

 

Comment by Eco Owl on November 20, 2011 at 4:18pm
Hi Kobus,

Thanks for all the advice, it is quite difficult to find both info and products here in Gauteng.

I have 2 questions about fish:

My grow beds total a surface area of 4m2 and are 30cm deep. My tank is 3900 liters. According to the Rules of thumb I calculate that I should ultimately have 20kgs of fish. Given that I will most likely start with fingerlings I would like to know how many fish I should stock. I thought about 100?

Secondly, I have read that Talapia are known as Kurper in SA. Is this correct?

Thanks,

Eco

P.S. Any idea of fish suppliers in Gauteng, are Hartebeesport Fisheries still in business?
Comment by Eco Owl on November 19, 2011 at 4:26am
I found feed troughs from www.ecofs.co.za that I am going to use. They are 2m x 0.5 x 0.3 deep.
Comment by Derick Sinden on November 1, 2011 at 11:55pm
Kobus - Thanx, appreciate your input. I  am a wiser aquaponic.
Comment by Kobus Jooste on November 1, 2011 at 8:12am
Derick - the state of the roots is not a concern for photosynthesis at all.  The leaves are the primary site for the gas exchange you refer to and if anything, a moist surface will allow more CO2 diffusion out of a root than a dry surface.  But as stated, it is the leaves that are responsible for gas exchange.
Comment by Derick Sinden on November 1, 2011 at 7:47am
Kobus. My concern is not of temperature but of what I was taught about the process of  photosynthesis in school. The plants are taking in carbon dioxide and giving off oxygen during the day and the reverse at night. At night the leaves give off carbon dioxide and I am assuming the roots as well. My concern being the fact that if the roots are too wet this will interfere with the plant metabolism. Are we saying that the 45 minute dry period is sufficient to avoid this situation?
Comment by Kobus Jooste on November 1, 2011 at 6:54am
Derick - all my systems run periodically or permanently through the night.  What is your concerns? Temperature drop during winter?  Most larger (commercial) systems are on all the time.  In terms of the functioning of the bacteria, they need to be kept aerobic, which means that if you starve them of circulation for more than a day, you could be in trouble.  You could circulate less at night, as the fish are not eating and ammonia build up would be lower than during the day, when they are feeding often, but for me there is no issue with pumping every 45 minutes through the night.
Comment by Derick Sinden on November 1, 2011 at 5:12am

Is pumping the pond water into the grow beds at night a good or bad thing?

 

Comment by Kobus Jooste on July 25, 2011 at 10:11am

Derick - over here on the forum we have a lot of potential fish ideas.  I have used everything from guppies to tilapia.  If you want food fish, I think Cape Town will give you trout and tilapia.  Trout may need some careful placement for summer water temp.  Not sure how many hatcheries around you can still supply fingerlings.

 

Tilapia could be a bit harder to find but I will go onto the website of the Aquaculture Institute of South Africa (www.ai-sa.org.za) and see if they have info on tilapia farmers nearby.  Your other food fish option is sharptooth catfish.  If you are interested, I'll suggest the same route as above.  You can also contact your local environmental management agency to determine if there are any regulations pertaining to the buying and transporting of fish that I am not aware of.

 

You have a resource at the University of Stellenbosch Aquaculture Institute to tap into as well.

 

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