grow rock and will fish tank rock work

[Steve]

hey, ron where do you go to buy grow rock and will fish tank rock work.If I use merical grow for my nuteints will it work. I am doing this for a scince project and think that Hydroponics are really think that it is COOL!!!!! I built your 11 plant system and everone thinks it's COOL. Thank you for your site and hope your buiness does Great this spring and summer.

[Ron]

At the grow store. No. And No.