I might be completely wrong but from reading through the build thread, I’ve not seen this mentioned. It almost seems to me that there’s no cycling phase: just add corals, filtration and fish. The reason I think this is that Roberto said he didn’t have an ammonia spike. If this is the case, I could imagine that it means there’s basically no phase early on where nutrients are high, organics are high, and no prolonged period where bacteria and other microbes are growing and competing with one another. Instead, this means nutrients are low to start, stay very low, and hence no undesirable microbes can get a foot hold. As corals and fish are added pretty much immediately, the tank is seeded with the mature and beneficial bacteria they carry, instead of a few artificially introduced strains. I might be way off but perhaps this is something different to most other tanks, which have prolonged periods of cycling.