It looks interesting, but based on a size range of 1/16-7/16, and water holding capacity of less than 30%, I think I'd choose Turface or calcined DE as a primary fraction of any soils I'd build. I think this material's physical properties could probably be closely compared with pumice/lava rock.

Al

Thanks Alpat

They are made from recycled bottles and are very good as a grow medium.
i have not used them as they are very new.

"They are made from recycled bottles and are very good as a grow medium."

And you know this how ..... having not used them?

Al

As a primary grow media they are good. Not to be misunderstood but when a company makes a product a good amount of R&R go into the product.

Fact is saying that product does not work, is very funny, in fact it made me laugh. Saying that is does work is normal considering its a product used for hydroponics.

I am sorry, this product was not tested? Maybe you should call the company and tell then to not make that product anymore as you know way more then them. :)

R&R haha yea pretty much!!!! ;)

*R&D!!!! I meant!!!!

I think I am not on subject and I am sorry. This is a container froum and the OP wants to use this in a mix for soil less I think the grow stones would be best by them self as a 100% medium as they can probably be reused.

So to mix with other things I agree with all the range in size is not the best.

"Maybe you should call the company and tell then to not make that product anymore as you know way more then them"

;) I just think many need to have a little more of an open mind thats all. If they decided to make the prodcut they would test it to see if it would work and market, just somthing to think about.

Having not really looked into them untill now, they look like they are a good perlite replacment. If they recycle material that would be tied up in the land fill I cant see whats wrong with it. Now cost could be the issue, it could cost more then perlite but I dont know.

From what I seen it is just like perlite, I cant see whats wrong with it?

Can someone explain to me how someone can post three times in a row on this forum? Whenever I've tried to post a followup (usually because of a typo or an omission), my second post has been rejected. Seems like a good idea to me.

Change the subject title. If you'll notice, MG's second post has a 1 added to the end of the subject, and his third post has it removed again. Although I've seen some people make multiple posts with seemingly identical subjects, and I have no idea how they do it.

Sorry guys, I just like looking into new ideas.

This looks very similar to pumice, lava rock, and perlite, yet costs several times more than those products. I'd be interested if the price dropped dramatically, but of course that won't happen.

Yes penfold, price is the first thing on my mind. I see it cost less then hydroton but I am not sure if it lasts as long, so.