Backyard Aquaponics
A place to discuss aquaponics

I have searched and searched, so, please correct me if I am wrong. I need advice. My pH is reading
6.0. It could be lower (don't have low reading tester). Barra like the pH to be around 7.6. In 1000lt
FT I have added 200gm bicarb with no change and have had 2.5kg of shellgrit immersed for 3 weeks also with no change in reading. I thought I read that these 2 additions would help to raise pH. Any advice on how to raise pH would be great.

NH4 @o.0
NO2 0
NO3 0

Thanks

Get some "hydrated lime"... brickies lime... Calcium Hydroxide...

Or if you plants are starting to flower/fruit/seed... some Potassium BiCarbonate... sold as "EcoFungicide"...

Both are quite strong pH buffers.. so use sparingly... how big is your fish tank??

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Fresh By Nature - Distributor of Aquaponic Systems and Products in NSW
http://www.freshbynature.com.au

It's a 1000lt fish tank. Plants not a problem, just growing water plants at the moment, to get through the Pilbara summer.

A small palmful of slaked lime...is all you'll need to bring the pH back a bit.. safely, if you have fish...

Test a few hours later... and repeat if needed..

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Fresh By Nature - Distributor of Aquaponic Systems and Products in NSW
http://www.freshbynature.com.au

Interesting shellgrit should correct the ph in 3 week. Where do you have the shellgrit?

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What we do in life echoes in eternity.
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My Second (smaller) System
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The shell grit needs to be in an area where it gets a lot of contact..

My own shell grit is in a Sand and Gravel filter[As the sand Layer] so it gets plenty of water contact..

Hope that helps..

The Lime I'm not to sure on.. .2kg for 1000lt might not be enough..[Only a guess.. let it take time..]
if the calcium has been depleted it might take a lot more to get it even..

But I do agree with it should be climbing slowly back up..
I think your shell grit might not be a flow area..

Juergen

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Smack me if I say something Dumb..

I'm full of idea's..
That need to put into action..
One of those idea's is happening right now even If I think it is slight void of what It could be..

Can I have a Mulligan..

J

I have the shellgrit in a pillow case on the botttom of the tank under the return pipes. Dont know what else to do with it.

Could the pillow case be stopping the shell grit from being more effective?

I used to have mine in a pair of stockings but now I just put it in the sump.

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ArBe
My Home System
My Country Backyard
My Suburban Backyard

How about suspending a bucket of shell grit under the return pipe's..
The returning water might have a better chance to have full contact with the Grit..


Juergen..

_________________
Smack me if I say something Dumb..

I'm full of idea's..
That need to put into action..
One of those idea's is happening right now even If I think it is slight void of what It could be..

Can I have a Mulligan..

J

Or just sprinkle the shellgrit through your grow beds...

_________________
>

Fresh By Nature - Distributor of Aquaponic Systems and Products in NSW
http://www.freshbynature.com.au