Aquaponic Gardening

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Cold Weather Aquaponics


Cold Weather Aquaponics

This group serves the needs of those who grow in the cold parts of the world.  We'll discuss greenhouses, insulation, air sealing, fish selection, heaters, etc...

Location: Anywhere that it gets cold!
Members: 75
Latest Activity: Aug 26, 2022

Discussion Forum

Cold weather Tilapia

Started by Ian Cameron Nov 16, 2017. 0 Replies

I picked up 20 fingerlings last November to grow out. Well, kept 2 males and 3 females aside to see if they would breed. Hmmm, I guess they like the greenhouse environment because I am now the owner…Continue

Cold weather problem?

Started by Jeff S. Last reply by Ian Cameron Nov 16, 2017. 3 Replies

I had an infestation of some kind of bug in one of my grow beds. I was able to flood it several times and eliminate the problem. I couldn't figure out why only one bed was affected and then I thought…Continue

To heat or not to heat

Started by Jeff S. Last reply by Mike R. Feb 11, 2016. 43 Replies

Last year I spent a ton heating my fish tank and built low tunnels around my beds to keep plant temps up. This year I'm thinking about heating the greenhouse to around 50-60 and by doing so cut down…Continue

Spring is Here?

Started by Ian Cameron. Last reply by Zach Mar 21, 2015. 1 Reply

Hi folks, well it certainly looks as if the weather over here is definitely getting warmer. Leaves are coming out on the weeping willow etc. The in-ground has survived the winter beyond my wildest…Continue

Cold Weather Aquaponics Blog

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Comment by Michael simonzi on August 25, 2017 at 3:52am
im looking for suggestions for a heater to keep my fish comfortable. I've just completed a permanent greenhouse 22'x30' Im putting in a 600 gallon tank for the fish, grow towers, flood and drain grow beds and a 250 gallon sump tank. I have 100 amp service I also have propane. What kind of heater should I use and where would you,put it the sump or directly in the fish tank?
Comment by Yaacov Levi on June 24, 2017 at 8:45am


Thanks for the add, I am in Northern MI, close to Lake Huron. I am planning a small hoop house for some IBC aquaponics. Have a sheltered place for the hoophouse, main thing I am looking for is about 6 IBCs. Looking forward to ideas here.


Comment by Jeff S on April 24, 2016 at 2:18pm

I haven't seen anything on an electric one but there is info on a gas setup on this blog somewhere. Downfall to them are the need for 20-30 lbs of pressure and the water needs to be clean so you can't run your fish water through them.

Comment by Zach on April 22, 2016 at 4:57pm

Has anyone used or thought of using a electric tankless hot water heater to heat there gh or water using a transfer system?

Comment by Bernie Diesen on April 22, 2016 at 10:59am

Thanks Austin

Good ideas!  Never thought about building greenhouse walls out of tires

Comment by Austin Bradstreet on April 21, 2016 at 1:57pm

I worked on plans for having a cement north and west wall (and partial East) but had to scrap it for cost reasons.  Ended up with plans for just regular insulated walls instead.  I took ideas from these guys.  They use tires as the foundation but the principle is the same.  Using the earth has a heat mass.

also the GAHT from Ceres!how-it-works/c1anj

Comment by Bernie Diesen on April 21, 2016 at 6:42am

Any one try building a partially buried GH? I,'m in Colorado Mountains at 85,00ft. I would not want to spend a lot on heating during the winter months.

Comment by Jeff S on November 24, 2015 at 8:33pm

I have the float problem under control now but if I did it over I would just put a long sump under the length of the GBs above the ground. Actually I'd like to move everything over about 4 ft. but that's kinda difficult with the in ground sump.

Comment by Vlad Jovanovic on November 24, 2015 at 6:49am

Hey Jeff, sorry to hear your sump ended up floating...Again, we need to stay within the parameters set forth 2,200 years ago by Archemedes of Alexandria from my earlier post..."Any object, wholly or partially immersed in a fluid, is buoyed up by a force equal to the weight of the fluid displaced by the object"...

Comment by Jeff S on June 3, 2015 at 10:28am

Vlad, Jeremiah: Update on in ground sump. I put 2" Styrofoam around the sides and bottom, no seal of any type. Unfortunately (or not) my yard has an extremely high water line. When the sump was low on water I found it floating really bad. The only way to correct it was to add water but I didn't have enough stored unchorinated water so I pumped the water that was around the sump in the ground into the sump. I was concerned that the water was going to cool down the sump but found out that since it already was in contact with sump it had risen substantially in temperature kinda like a heat storage tank. The water was clean so I still use the same method to add to my sump. We had torrential rain here last week and the water line around the sump was 4" below the ground surface. Had to almost fill the sump to compensate.


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