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Tom Barnhardt
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  • Milford Center, OH
  • United States
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AXIS calcined diatomaceous earth

Started this discussion. Last reply by Tom Barnhardt Apr 6, 2011. 6 Replies

Has anyone every thought of using Axis as a grow media? I am thinking of trying a test bed to see how it performs. I would liek any feedback. Thanks !!


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Looking to start my system this summer to provide fresh vegtables and fish to our soup kitchen

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At 3:30pm on May 7, 2012, Connie Christians said…

We started cycling on April 14th with 55 tilapia fingerlings in 650 gallon fish tank. We reduced the water to about 150 gallons to accumulate solids and raise the concentration of nutrients to the plants. We added 40 bigger tilapia (6") on the 27th, increased water to 250 gallons and added 500 gallons of raft bed, then we had a huge growth spike on May 4th. So, I would say we are fully cycled now.

Re: cycling with pond water-- I would say off-hand that the concentration of nutrient would be too low to create lots of growth. You need to stock your fish in a good balance of water- 1:10 or 1:5. I'm thinking we're right around 1:7 right now and it's working very well. Keeping the nutrient level high enough for the plants is what you're after.

Good luck.

At 10:52am on June 22, 2011, Amy Youngs said…

Hi Tom, I bought the solar pump and panel kit on Ebay. Search "Solar Power Water Pump 8 Watts with Battery & Timer" in Ebay and you'll find a few sellers there. I've purchased 3 different kits and they each have different branding on them because I think they are all just from China. It is the exact kit that is pictured on this website: but they are out of stock now.


Good luck!



At 2:19am on April 8, 2011, Ken Pilarczyk said…

That will be fine. We'll find a time that works.



At 2:55am on April 7, 2011, Ken Pilarczyk said…

Hi Tom,

It sounds like a good plan. That size GH is a good size for a small barrel system. With perch watch out for over heating. They like 65 to 75 deg. water. Keep the tank shaded for algae temp buildup. Insulate the tank if possible.

When I change the plastic on my GH, I'm going to add roll-up sides and automatic top vents. I have more trouble with summer temp. then winter with the fish.

At 3:19am on April 6, 2011, Ken Pilarczyk said…

Hi Tom,

I'll be glad to answer all your questions. First answer is it all depends.

I have some questions for you. Where do you want to go with this? What do you want to  with this project? Small hobby, family food production, small business? Do you have your own place? How much land do you have? City or country? Good neighbors?

  The 300 gal. Rubbermaid is good.

  My system has been up about 18 mo. The perch are doing fine. The 23 fish is fine for a small bed system. More fish more beds. I had 125 adult perch in a 300 gal tote (IBC).

  I know my answers sound cryptic, I'll explain more when I get back from work.



At 3:09am on April 5, 2011, Ken Pilarczyk said…

Hi Tom,

Don't know where to start.

I have found yellow perch do not like square tanks. They are schoolers. They do better in round or rectangular tanks. they will go around and around. Tilapia and blue gill will go up and down in the column of water. Perch will usually stay on the bottom.




At 2:51am on April 4, 2011, Ken Pilarczyk said…

Hi Tom,

I'm glad to see another Ohioan. I'm raising yellow perch.



At 7:33pm on March 20, 2011, Sylvia Bernstein said…

Welcome Tom,

Thanks for joining the Aquaponic Gardening community!  I hope you find it a fun place to explore aquaponics.  There is a real blend of experienced and new aquapons in this community, so please don’t hesitate to get in there and start asking questions.  Everyone is quite happy to help out new members – no question is too basic.  

A great place to start is to read the “How to Use This Site” link on the upper right corner, “Start Here” section of the Main page.  You might also find the “Aquaponic Gardening Rules of Thumb” guidelines helpful.

Please add a profile image, participate and check in with us every day!  We are constantly posting news about aquaponics and the good food movement.

Thanks again for joining us, and I look forward to getting to know you.



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