I'm mixing it to a 1.025 level and it stays cloudy even after 12+ hours of mixing. Furthermore in my mixing bin there's a white film left on the walls. Has anyone else had this problem? I know Arnold posted the same about Seachem Reef, but I thought AVS was a higher grade. I added salt to a full bin of RODI water 1/2 of the total salt at a time, and it's the 2nd half of salt that causes the cloudiness. thoughts?