Aquaponic Gardening

A Community and Forum For Aquaponic Gardeners

Kobus Jooste
  • Male
  • Cape Town, Western Cape
  • South Africa
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Kobus Jooste's Friends

  • Aquaponik Berater
  • michael heery
  • Sven Verwiel
  • Frances Prado
  • Richard Joseph
  • marty lininger
  • Ame Takashi
  • Aquaeroponía
  • John Link
  • Liz & Dan
  • David Fick
  • mike houlihan
  • Gabriel
  • Gene McIver
  • Tommie Smit

Kobus Jooste's Discussions

Holy grail for aquaponic production

Started this discussion. Last reply by john Apr 18, 2017. 58 Replies

Which plants are still considered "difficult" or "impossible" to grow in aquaponics?  I have begun a process of trying to design a system that can grow as many different varieites of crop possible. …Continue

Mozambique tilapia strains outside of Africa

Started this discussion. Last reply by Kobus Jooste Oct 13, 2011. 3 Replies

I'm interested in finding out if there are any international breeders that have specialised in stock improvement of mozambique tilapia.  With our environmental laws stalling permits for hybrids or…Continue

Aquaponics, worms and E. coli

Started this discussion. Last reply by TCLynx May 7, 2012. 134 Replies

I have been made aware of a section in the latest newsletter of an aquaponics trainer making some rather interesting statements around the risk of introducing "deadly" E. coli HO157:H7 into…Continue

Tags: worms, coli, E.

Vertical level switches

Started this discussion. Last reply by Nick Dark Nov 16, 2014. 26 Replies

Hi there all I am currently working on a design of a very small self watering garden, and want to find an effecient way to switch a small pump on and off.  Even the 15 minutes of mechanical timers…Continue

Tags: switch, level, vertical


Kobus Jooste's Page

Latest Activity

Sonny Carl joined Kobus Jooste's group

Mixed Aquaponics Design

Do you combine different media, methods or even culture species in such a way that no rules or system descriptions out there really applies to you? This is the place to share, ask questions, learn and refine.See More
Dec 18, 2020

Profile Information

How did you find us?
a friend
Are you an aquaponic gardener already?
If so, what type of system? (pick all that apply)
How old is your system?
2 yrs or more
What type of fish do you grow with? (select all that apply)
Koi, Tilapia
How big is your fish tank?
About 200 Gal (900 liters)
Name a part of a fish (spam blocking question)
Please tell us something else about yourself.
I love to mess around with ideas, do not think much of rules and ratios, and experiment rather than stick to known methodology.

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Kobus Jooste's Blog

Community pages need new management

Posted on November 8, 2011 at 1:36pm 16 Comments

For the last couple of weeks, mounting pressure from family commitments, work and research projects have been taking its toll on my “aquaponics time”.  Recently, these little distractions culminated in the news that a job that I have applied for months ago had finally come through, and that I will be heading off to Cape Town, 800 km from where I live now.  I do not have much time to get all my things in order, and part of what I would like to sort out are the pages that I have started over…


My pick for a commercial fruiting plant in aquaponics: The passion fruit

Posted on October 13, 2011 at 10:47am 18 Comments

Most people interested in commercial aquaponics invariably start looking at potential yields of different crops and then, after a thorough literature search, will discover that there is very little available in terms of potential yields of larger crops.  Stuff like basil, lettuce, tomatoes and cucumbers etc. seem to be written about the most.


With the advent of what I consider to be the most likely design for my own use in a commercial environment, namely gravel beds and…


Can "Dirty" water NFT work?

Posted on October 1, 2011 at 6:29am 6 Comments

Time for all the plant experts to wade in please!  I have been tinkering with a number of different media-less / media filled growing configurations of late.  The ones that interested me the most in the end was partly filtered versus “dirty” NFT.  The reason why this has become interesting for me relates back to the type of technology that is required to run these.  Should there be some way of making “dirty” NFT work, then there should be an advantage in trying to understand what I am…


Time to innovate is here

Posted on September 18, 2011 at 2:54pm 6 Comments

There have been a number of articles milling in my head again.  Being a person of above average curiosity in many directions is not always a good thing when there is an internet connection around, as you tend to spend far too much time scratching around in science and technology articles than updating your taxes or whatever else is pending.


The joy is when you read three or four totally unrelated papers and get that little flash of insight that allows you to draw new…


Comment Wall (27 comments)

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Join Aquaponic Gardening

At 2:57pm on February 25, 2022, Magui said…

Good day,

I picked interest on you after going through your short profile and demand it necessary to write you immediately. I have something very vital to disclose to you, but I found it difficult to express myself here, since it's a public site.Could you please get back to me on( for the full details.

Have a nice day.
Mrs. Magui

At 3:42am on June 19, 2013, Jim Troyer said…

Hi Kobus:

Thanks for getting back to me.  To bad about the lack of grow space.  Controlling a piece of the planet is a definite privilege.

Regarding the towers; were the grow pockets too close together vertically or was the 4" PVC tubing too small in diameter hence not enough media?  How much space is needed between towers for proper sunlight?  I was thinking I would like to create a set to keep my indoor brood tanks clean and to grow some strawberries year round.

thanks for any light you can shed on this issue before I spend money (again).

Jim Troyer

Scottsdale, Arizona, USA

At 10:29am on May 19, 2012, Teresa N Florida said…

Hi Kobus,  Hope all is well for you and yours.

At 7:37am on March 18, 2012, Jacques Kleynhans said…

Hi Kobus, I read in one of your posts that you moved to cape town. I also stay in cape town. The aquabug bit me and now I am planning my first setup. But with so many startup failures because of bad planning I want to take my time and learn everything before I start spending money. Would be nice if we can meet up so that I can pick your brain get some knowledge transfer.



At 9:41am on December 2, 2011, Carey Ma said…

Hey buddy, sorry for late response. I'm happy that you found solid work and am sure you will make a difference to improve the quality of life for your countrymen. I sure miss your input and feedback. Please don't be a stranger and drop me a line once in a while.

May your god comfort and guide you.


At 6:04am on October 24, 2011, Gene McIver said…

Thanks for the info about the jig for the tower. I like the coffee cup addition. 


At 5:01am on September 16, 2011, Londiwe Melody Phoswa said…

Thanx Kobus for the warm welcome.

At 8:15pm on September 14, 2011, Eric Warwick said…
I'll send you it via e-mail. Is this your e-mail?
At 3:26pm on September 14, 2011, Eric Warwick said…
Kobus I typed a research paper for a class and I used some information you have put on this community. Please tell me if I misused or in any way misconstrued your statements. They are about growbed design and duckweed. Also I want to send you the document so I know if I made a mistake, as I'm posting this on the community. If you would like your quotes to be taken away I can revise the paper. Thank you.
At 12:39am on September 9, 2011, Attie Esterhuyse said…
Hi Kobus, I completely forgot that I registered on this site. I will have a look at the group and join.

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