I got on GH's website and they only suggested using a mild bloom solution, but this did drop the pH to 5.2, I orginally thought that was too low but after reading 1 post today they say that's actually good for calcium uptake. I adjust pH to 6.34 and I've got my fingers crossed. I went ahead and just put them right in the RRs with no germination. I put a about 32ozs of water all together and that left about 1/8 inch of water on the bottom of the tray for the RRs to soak up. I'm hoping they don't rot and I didn't increase the pH too much!