I'm sorry, but I haven't had a chance to run a KH test yet, OK, I'm lying, I completely forgot when I got off work. But I willing to bet that it will well over the 3 mark. As for my 10, I run a UGF, so then I will just put some of the gravel in the 29 to set it up. If my KH is too high, will it be bad if I inject the co2 in? I'll write back when I can get a test on it. I will do a fishless cycle, should I put the plants in and then start cycling, or should I cycle for a day or so, and then put the plants in, or start at the same time?