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Old 12-19-2010, 12:08 PM
halfway halfway is offline
Join Date: Oct 2010
Posts: 79

Originally Posted by GpsFrontier View Post
Hello halfway,
I saw the video, it looks like it's like a nice simple setup, and should work great. You don't even need to light proof them because of the color and thickness of the plastic from what you said. Looks like you will have a nice supply of lots of good lettuce. I think I may have asked you this before but don't remember. You mentioned using silica stone for a growing medium, and that it's porous. Where do you get it? Is it pH stable? Is it easily available and less expensive than traditional grow rocks?
It is Sunleaves silica stone. It normally costs about the same as hydroton and is easily reusable. I could have went with a cheaper medium, but with the expected life, ease of use, absorption etc., it seemed to be pretty efficient. I caught it on sale cheaper than hydroton, so that sealed the deal for a large bag that will last me many years.
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