[growmore]

Originally Posted by fintuckyfarms

So I was at Lowes looking for some pea gravel for my 3rd system and I came across this. Do ya think it would work in hydroponics?

Shop Rubberific 0.8 Cu. Ft. Red Rubber Mulch at Lowes.com

I can only tell you I purchased a bunch of it for some plants that were in the ground and they didn't not do well at all. In fact we had to pull it back away from the plants as they started to die. I don't know if it was the chemicals that your speaking of or the fact that the stuff gets hot. Whatever it is we won't be purchasing any more.