Aquaponic Gardening

A Community and Forum For Aquaponic Gardeners

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

Shade house in the summer for Texas..

Started Feb 1, 2014 0 Replies

No Description

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 Joni Solis Nov 13, 2014. 11 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


Moderator
Steve R replied to Rob Nash's discussion DIY Heater, build your own 2000 watt heater for $20 ***DONT USE COPPER OR NICKEL ELEMENTS!
"Well if it does contain zinc it can kill your fish in a matter of days."
Jan 22
Jeff S replied to Rob Nash's discussion DIY Heater, build your own 2000 watt heater for $20 ***DONT USE COPPER OR NICKEL ELEMENTS!
"I'm not saying it's right or wrong but I've used the cheaper elements with no adverse affects that I see. Never could get them to stay sealed so I went with a bucket heater in the fish tank. Works great."
Jan 22

Moderator
Steve R replied to Rob Nash's discussion DIY Heater, build your own 2000 watt heater for $20 ***DONT USE COPPER OR NICKEL ELEMENTS!
"Aren't those heating elements High in Zinc? I know at least some of them are. "
Jan 22
Chris " Wild Dog " S. replied to Rob Nash's discussion DIY Heater, build your own 2000 watt heater for $20 ***DONT USE COPPER OR NICKEL ELEMENTS!
"Great IDEA !! i liked it so much i made one tonite :) the weather has been down in the "BrrrrRRRrr's" in Ohio lately and my lil water heaters were not keeping up. i used the "inline" style you showed as an example my cost at…"
Jan 20
Gordon Keith Denman replied to Rob Nash's discussion DIY Heater, build your own 2000 watt heater for $20 ***DONT USE COPPER OR NICKEL ELEMENTS!
"Thanks Jeff that is actually a easy fix and precaution to boot. I will do that just to add another security measure to my system."
Jan 11
Jeff S replied to Rob Nash's discussion DIY Heater, build your own 2000 watt heater for $20 ***DONT USE COPPER OR NICKEL ELEMENTS!
"As I said this has happened with an aquarium heater too. Easiest thing to do is just drop a ground wire in your tank.  "
Jan 10
Gordon Keith Denman replied to Rob Nash's discussion DIY Heater, build your own 2000 watt heater for $20 ***DONT USE COPPER OR NICKEL ELEMENTS!
"Hi Jeff I have not had any issue like that. I have put my hand in the water to check it. I also used food grade water proof silicon to cover the heater where the wires connect to the  element just in case there is any type of leak. What is nice…"
Jan 10
Jeff S replied to Rob Nash's discussion DIY Heater, build your own 2000 watt heater for $20 ***DONT USE COPPER OR NICKEL ELEMENTS!
"I had a problem when I used that style heater with it shorting to the tank. When you stick your finger in the water you could feel a tingle and you could register voltage with a meter. I put a wire in the water and ran it to ground to eliminate…"
Jan 10
Gordon Keith Denman replied to Rob Nash's discussion DIY Heater, build your own 2000 watt heater for $20 ***DONT USE COPPER OR NICKEL ELEMENTS!
"I just finished making my heater yesterday night. In 14 hours it brought my 240 gal fish tank and my 45 gal grow bed up from 50 degrees to 75 degrees. It would of been higher but I did not set the temp range properly on my itc-1000f temp controller.…"
Jan 10
Gordon Keith Denman replied to Rob Nash's discussion DIY Heater, build your own 2000 watt heater for $20 ***DONT USE COPPER OR NICKEL ELEMENTS!
"Hi Rob Did you cut the slots into your heater cover or can you buy it? I am working on making my heater and really like this design. I am going to do a hanging heater and the water could free flow around the heater element with this set up. Thanks,…"
Jan 4
Jeff S replied to Rob Nash's discussion DIY Heater, build your own 2000 watt heater for $20 ***DONT USE COPPER OR NICKEL ELEMENTS!
"I built one of these heaters and filled the PVC with silicone. Like Rob said, it didn't seem to dry completely. Shorted out. I just replaced it with a bucket heater  …"
Oct 22, 2015
Rob Nash replied to Rob Nash's discussion DIY Heater, build your own 2000 watt heater for $20 ***DONT USE COPPER OR NICKEL ELEMENTS!
"Vlad, I hope your doing well.. good to hear from you.. I dont mean to argue ;-) I should have said.. I personally dont like to use silicon in this build.. but it couldnt hurt.   cheers, Rob "
Oct 22, 2015
Rob Nash replied to Rob Nash's discussion DIY Heater, build your own 2000 watt heater for $20 ***DONT USE COPPER OR NICKEL ELEMENTS!
"dont bother with the silicon,, it doesnt dry and like all silicon applications,, its only a matter of time till it cracks loose.. leave the green ground wire bare and in the rubber boot.. it will trip the GFI if it leaks.. the only time ive had one…"
Oct 22, 2015

Moderator
Vlad Jovanovic replied to Rob Nash's discussion DIY Heater, build your own 2000 watt heater for $20 ***DONT USE COPPER OR NICKEL ELEMENTS!
"Yeah, fill thee back (while it's dry of course) with silicone, polyurethane sealant/adhesive...or some other appropriate insulative material. You wouldn't want the condensation to potentially short anything out. "
Oct 22, 2015
Larry Miller replied to Rob Nash's discussion DIY Heater, build your own 2000 watt heater for $20 ***DONT USE COPPER OR NICKEL ELEMENTS!
"I have seen others do this and fill the back with silicon to completely cover and insulate the connections. I would do this rather than have the chance of electrocuting my fish, myself, or a family member. And of course, use a GFCI outlet…"
Oct 22, 2015
Tim Garretson replied to Rob Nash's discussion DIY Heater, build your own 2000 watt heater for $20 ***DONT USE COPPER OR NICKEL ELEMENTS!
"I have a similar submersible heater I've made from the numerous ideas on here and on YouTube. I guess I used smaller fittings, as my PVC pieces are 1 1/4" and threaded 1" Inside. Also my rubber joint connection is a 1 1/4" X 1…"
Oct 21, 2015

Profile Information

How did you find us?
Search engine (Google)
Are you an aquaponic gardener already?
Yes
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?

Cheers

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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