Rob Nash
  • Male
  • Austin, TX
  • United States
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Rob Nash's Discussions

How much water is too much?

Started this discussion. Last reply by Rob Nash Jul 29, 2012. 5 Replies

I have a koi pond that is aproximately 6000 gallons, and want to connect some flood and drain beds to it. I dont have room to add the normal ratio of grow beds,which would be about 1500 sft,  but can…Continue

Tadpoles in the raft system

Started this discussion. Last reply by Dave Weekz Mar 31, 2012. 9 Replies

I recently experienced three weeks of slow growth on the lettuce rafts. The sun had been out just as much or more than the month before, but the plants were showing signs of stress and beginning to…Continue

What is the best design for a wicking bed?

Started this discussion. Last reply by Rob Nash Mar 13, 2012. 10 Replies

In an effort to build a more sustainable garden, im trying to have as many things out side the ap systems as possible. Most likely i will never go back to dirt rows, but know that power can be the…Continue


Rob Nash of HannaLeigh farm & Austin Aquaponics

Latest Activity

Rob Nash commented on Chi Ma's group Aquaponics For Beginners
5 hours ago
Rob Nash commented on Chi Ma's group Aquaponics For Beginners
5 hours ago
Rob Nash commented on Chi Ma's group Aquaponics For Beginners
"yes sir, gravity feed back to the FT  I installed a "polisher" (orchard netting in a 30 gallon tub) between my grow beds and raft.. works great, but needs to be cleaned now that its been in place for 2.5 years.. i would plan to clean…"
6 hours ago
Rob Nash replied to Carson Miller's discussion Wooden Growbed Sealing/Suggestions
"the calk would be about 1/3 of the cost DuraSkrim liner.. i recommend putting your money toward the right purchase and be done with it...   heck.. i have that much liner laying around... im willing to send it to you for free, just to see…"
10 hours ago
Rob Nash replied to Adam Dusen's discussion 40,000 liter DWC in The Bahamas (run by a newbie)
"hybrid with media beds is my personal favorite. "
19 hours ago
Rob Nash commented on Chi Ma's group Aquaponics For Beginners
"media beds are the best mechanical and bio filter combo available. besides.. your growing options are very limited in a raft.. definitely go with a hybrid system when you can... helpful info = a 4ft x 8ft bed services 150 gallons.."
Rob Nash replied to Maggie Culver's discussion High pH expanded clay
"minerals plus should be available online... try amazon follow the directions on the bag... i did something like 4lbs / 100 sft."
Rob Nash replied to Maggie Culver's discussion High pH expanded clay
"not sure why,, but it does its biological magic at high pH ranges... Green sand works at high pH too. perhaps its because the higher pH is good for bacterial growth etc, thus the Streptomyces Lydicus WYEC 108 and 47% humic acid, can work at higher…"
Rob Nash replied to Maggie Culver's discussion High pH expanded clay
"I have heard of some clay having a sulfur smell and keeping the pH too low.. but it seams odd to keep it high.. my advice is the same as always ,.. leave the pH high for now.. it will kick start your system faster, and the pH will drop on its own…"
Rob Nash commented on Campbell Frey's blog post New To The Game!
"welcome to the club!!  this is a the best place to meet and learn from other Aquaponeers..try a search on this site for these threads... all of which have been covered in depth multiple times over. when it comes to commercial, its all about…"
Rob Nash commented on Rick Stillwagon's photo


"i like to have a beer while working on my ap garden.. but whew, dont get me started on the rum.. thats a bad ass project... love your work Rick. my guess is you will become the local favorite, start making real money, and keep ap as a personal…"
Jul 11
Rob Nash commented on Mathew Slattery's photo

Barrel Ponics

"by far the most impressive growth in a barrel system ever posted!"
Jul 9
Mathew Slattery commented on Rob Nash's photo

ap 300 compact

"Once again thanks Rob. Maybe one day I will make it to Austin TX. I currently live in the Turks and Caicos Islands so it woul…"
Jul 9
Rob Nash commented on Rob Nash's photo

ap 300 compact

"Mathew ,, we use a perforated standpipe with four 1/4" holes in the bottom and a cycle timer. if you can make it to one of my classes, i can show you how its done... or buy the How-To handout, and parts kit.. and you will be on your way with…"
Jul 9
Rob Nash replied to mattyG's discussion Tiny White Bugs
"sounds like Spring Tails if so.. there harmless, just little cleaners in the media.. be sure its not white fly.. "
Jul 7
Rob Nash replied to Carson Miller's discussion Wooden Growbed Sealing/Suggestions
"go with Duraskrim.. for a box that small it would cost about $40 "
Jul 7

Profile Information

How did you find us?
Search engine (Google)
Are you an aquaponic gardener already?
If so, what type of system? (pick all that apply)
flood and drain media, raft, combination
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?
3 xs 1,000 gal, 300 gal, 180 gal xs 2, 150 gal, 50 gal xs 2, 1000 gal koi pond
Please tell us something else about yourself.
We run a small farm in Austin Texas, utilizing aquaponics on a commercial scale. Farming, installing systems, support and consulting ...we live and work with AP every day. I love what I do.

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Comment Wall (21 comments)

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At 5:28pm on April 8, 2014, Matt Lindley said…
Hi Rob. I have been using goldfish and koi in my system that I started one year ago in SA. I would like to add in tilapia this spring. I was told I might be able to purchase some from you. Is this correct?
At 6:15pm on January 8, 2014, Erik Powell said…
Have you ever worked with anything vertical or towers? I just got my tower in over a month ago and its way sweet!
At 12:28pm on March 15, 2013, Bryan Acred said…

Everything looks great Rob. Very professional. Great work.

At 10:18am on July 3, 2012, Chris Schup said…

Awesome. Thanks!

At 9:40am on March 22, 2012, chris taylor Swamp Creek Farms said…

Do you prefer gravel over rafts?  Building a setup similar to yours,  just dont want to do it twice.  Never tried rafts yet,  it seems i can grow more in gravel tho.

At 10:49am on February 29, 2012, Patti Taylor said…

Hey Rob anything going on this Sat?I need to get some shale this weekend and might swing by.

At 9:41pm on January 20, 2012, Ahmad said…

Hi Rob - it looks like you have a large operation, how many people work with you? Do you keep track of your total output? About how many square feet of growing space do you have?


At 8:24pm on November 27, 2011, Patti Taylor said…

Hey rob thanks for all the info and helping me dial in my system.The fish are doing great and  I plan on building that heater tomorrow.My wife and I really enjoyed the tour of your facility.your input was spot on...I learned more from you in a couple hours than I have in weeks searching on the net.

At 9:49am on November 27, 2011, Britt Fullerton said…

Howdy Rob, It's John Fullerton, I've been away from things as of late. I hope life is treating you well.  Awesome post on the heater.  Just saying hello and checking in, nothing major at this time.  Still working on getting the greenhouse built and finished.  Still want to come down and check you out sometime and just working on figuring out the time that's best.  Life is super busy.  Take care and talk to you soon.

At 5:16pm on November 21, 2011, David Schwinghamer said…

The one for 20?


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