20 lb bag of grow cubes. That's hilarious. I'm still trying to think of ways to use all of this hydroton. I may just end up dumping the stuff in the garden. Grow cubes. Well, some people swear by them. I tried the jiffy pellets and a bit too wet for my liking.

I'm trying your cloning method in a glass jar. I put 2 clones in a glass jar. Sprayed the cuttings and put the lid on. I layed the jar on it's side and put it under a weak light. The plants started to curl. The stems turned into a C. It's been 3 days. The stems are brown around the cut portion. But they don't look rotted. The rest of the clone is healthy and green. I don't see any root bumps. Hope I'm doing this right. I know you put a container inside another container. But I tried something different.

I know what you can do with your growcubes string them together for Xmas decorations.
Gen Reviewed by Gen on . Can you use red lava yard-rocks for grow medium ? Iā??ve heard people mention ā??lava rocksā?? as a grow medium, instead of Hydroton. Are they talking about special lava-rocks sold at a grow store, or the red lava-type rocks used for landscaping, that people use in their front yard in place of grass ? The yard kind is probably very cheap compared to Hydroton (they probably sell it by the cubic yard like soil). What I wonder is: 1) does it release minerals into the solution that would raise/lower the pH ? and 2) does the rock being red Rating: 5