Sorry, lots of responses, let me try to answer them all:
My cloudiness was a phytoplankton bloom, not precipitation. I put up pictures of it with the lights off in my light build thread, it is clearly green as hell, not "snow".
I always put kalk in my topoff water, this was nothing unusual, its just the first time I topped off the tank since I added the new critters. I slightly overfilled it when I added the other tanks stuff, but my salinity was a tad low so I just let it evaporate down to 1.026 (it was about 1.024)
I posted my new plan for my light timing in my build thread a couple days ago, the short story is my new plan is to run 6 blues and 6 violets, at about 600mA for 15 hours a day, and I run the rest of the lighting (turned down some) for 4 hours a day, I plan to increase that by 30 minutes (the shortest time increment on my outlet timer) about every other or every 3rd day once my corals are looking adjusted to it.
As I said the new test kits are on the way, the old ones were no longer dependable and thrown away. It has been a while since I felt they were dependable.
No detectable N or P
I added Charcoal in a media bag near my return pump, not optimal but the best place for media I have.
76 degrees
1.026 salinity
No it was only about an inch deep in a 25 gallon tank.
I would guess it was only about 20lbs or less and it went into my 40 gallon sump that has a bare bottom, while there may have been some bacteria dieoff, I doubt it was very much. Right now I think the sand in my sump averages a half inch or less in depth. I think my phytoplankton bloom was the result of some dieoff and whatever nutrients were in the sand. Now my phytoplankton bloom is nearly gone and my N and P is non existant.
No, there is no odor other than the normal smell, which just smells a bit like the ocean. Not unpleasant at all.