I have been doing a fishless cycle for a little over 5 weeks. At this point it takes around 12 hours for ammonia to drop from around 4-5ppm to 0. And I have no nitrites, down from off the charts last week. This seems to be very good news, except I have only around 10ppm Nitrates. Should I wait a little longer for them to build before I get fish. Also at this point my PH is very high., 8.4 or so. I am going to buy a small piece of driftwood, is there anything else I should do? Thanks for the help.