Haven't done a water change in a week and the aquarium was jumpstarted with their same filter media that was in the canister on the 20 gallon that they were in. I haven't tested since I started the system so I felt compelled to do so this morning I'm actually floored by the results. 0PPM nitrates!!!!!!!!!! I thought it was a fluke so I tested the nitrates again just to be sure. I can say that this is my very first time doing a successful instant cycle. Any other time I've always ended up with a mini cycle of some sort. I'm still going to do a water change later today after I go purchase a small pump and some hose. No more siphon for me. It took me almost an hour to do a 50% water change last time