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Showing results 1 to 1 of 1 Search took 0.00 seconds. Search: Posts Made By: GregB

Forum: Hydroponics 01-30-2009, 01:00 AM

Replies: 1 can I use lava rocks? Views: 7,019 Posted By GregB can I use lava rocks? Hi, I wrote to you about two months ago and ask about the 4" pvc pipes, Well I did it! I am using clorox bottles and I have two questions 1: can I use lava rocks? will it screw up the ph? 2: I have...

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