I collected about 20 seeds from a fruit that was cut open for display at work and cleaned/dryed them. I planted them in a plastic container with about an inch and a half of soil (soil was mostly cactus mix with some added perlite). I moisted the soil and covered the container with syran wrap. It has been a few weeks now and I haven't seen any activity. The seeds aren't very deep at all, they were just lightly covered with soil, is there anything I did wrong and could improve upon next time?