Backyard Aquaponics
A place to discuss aquaponics

Minimum 12-15mm IMO....

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

Thanks Rupert,
In my haste/excitement i made my grow beds 350 deep. /i guess i will fill it 300 deep. going to be heavy

Great information dude, particularly the point which I really got inspired that is Perlite that point is really helpful and able of appreciation.

Best Regard:

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www.getkoozies.com

With the topic of using glass as a medium, I'm surprised that no one has even talked about Growstone. It uses recycled glass as its main ingredient. Its made in the USA so not sure if its available outside the USA for now. I'm using it in one of my small growbeds right now to test it out.

Initially I had a problem with the pH staying high in the system. Eventually it went down. After reading the MSDS, I found out that they use Calcium Carbonate as a foaming agent during production. It took awhile for the system to consume the carbonates but now its not a problem. Guess you could let them soak in water overnight and discard the water to try and lower the carbonates. I didn't worry about it too much.

You can have different sized media in different beds. Smaller media is better for sowing small seeds and the bigger media is great for seedlings and larger plants like tomatoes

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IBC system
Bigger system
Greenhouse system
Horsham Aquaponics