For arag-alive it seemed pretty dusty but I guess you used the super fine oolite. I'm not worried about a cycle as I have had the rock for over 2 years and the last tank had a much higher bio load so it can process any amounts of ammonia/nitrite that shows up, plus the sand is already live, and I ran the whole tank/sump for 2 days with fresh water and stress coat to flush and condition it. Use RO/DI water with Ultimate as a conditioner on entail fill. Ultimate claims you can add fish right to a brand new tank hours after setting up by using it but I would never do that. Just got some crabs, snails, blue hippo tang, 2 cleaner shrimp, 2 shaving brush plants and a silver branch pumping xenia frag- which seems to be getting bigger everyday already
(gonna be fragging that soon I can tell) and some yellow polyps. I test the water daily for PH, (8.4) ALK (10dkh) and nitrate (< 1)
gave you some tips in your other thread (brown sand) about the plumbing if you haven't checked it yet.