Hi Fresh, Did you ever have any measurable ammonia, nitrites or nitrates? At 5 weeks and with levels of zero, I'm wondering if your cycle has even started. Where did you get your live rock? Was it from an established tank? If so, you might not experience any cycle.
Looking at your gallery, it appears you have a layer of aragonite sand, and then a layer of crushed coral. Any particular reason you did this? Crushed coral can have some particular problems. You'll want to keep it vacuumed when doing water changes. With live sand, this isn't needed. Also, it appears you have quite a deep sand bed. Sometimes deep sand beds can cause problems and usually take a bit more maintenance than shallow sand beds.
So far, things look good. I'd just be concerned that your at 5 weeks and reading zero levels of anything. You should have nitrates, at least. Unless you started with rock from an established aquarium. 5 weeks is just pretty quick for a complete cycle, from start to finish.