Also lots of little air holes for either bacteria or algae to grow.
GoldenGoblin Reviewed by GoldenGoblin on . Alternative grow medium here is a cheap grow meduim that can be used instead of those expensive clay rocks. I use lava stones. Thats right LAVA stones straight from home dePOT. ment for the BBQ grill. The porus stones hold water and nutes in between waterings, so the plant can get O2 and if it needs water it can get it from the lava rocks. The seedlings are in a home made ebb and flow and they seedlings are bag seed 2 weeks from paper towel. under 4 26 watt cfl. :rastasmoke: Pics included. :thumbsup: What do Rating: 5