I've used rinsed pea gravel with great success, flooded three times a day using Flora Nova nutrients. You just have to rinse it a few times first to get rid of all of the sediment which would probably tear up your pump.
IAmKowalski Reviewed by IAmKowalski 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