Time for an update:
2+ weeks later, and so far quite impressed. I am getting some noise in the biome, I suspect it will calm down in time. A clear bacteria sludge formed in the sump, likely due to new piping, glass, plastics, glues, silicone, etc. Yesterday I vacuumed the sump with my bucket top wet dry vac, replaced with 10 fresh gallons of salwater. Also, I am seeing, dare I say, a possible form of dinos in the display, mainly in sandbed. Despite all of this, I will continue Aquaforest Probiotic Method, but, a slight tweak for now.
So nutrients are good, but.... 0.00 P04 has raised my eyebrows. I am very happy with N03 at 2.5-5ppm. That said, bacteria, possible dinos, I decided, for now to raise P04 by a start dose of 5ml, a Jumpstart dose yesterday, and a continued dose of 2.5ml daily, at least until I reach maturity. The 60 gallon also was naturally P04 limited, so I sort of expect same here, but that system was quite mature, and ill effected.
Finally, I am chasing PH, using a scrubber, I am convinced this is crucial to the health of the system. Only 1 problem, humidity. I have to add water like every other day, as it dries up quickly in the reactor, not running recirculating, nor do I plan. I ordered a Milwaukee PH monitor, it arrives today, and I will be documenting my findings. I will likely fabricate a humidity canister where the scrubber can draw humid air. If not, I will drill for fresh air, lol