Im not new to this hobby but its been a while since i set up a new tank. I have a 180 and due to the size I filled it with RO water and mixed the salt in the tank. I have two powerheads pointing at the bottom of the aquarium. Its been 4 days now and it is not clear yet. Also there seems to be debri in the tank not sure what that is. I cleaned the tank very well. I have seen the debri sometimes in my saltwater mixing garbage can. im assuming its some of the calcium etc. but its definitly from the salt. The salt brand it reef crystals. Is this normal, is it ok to put sand and rock in? I dont have any filtration running yet and im assuming that is the reason its not clearing up quicker. Any thoughts?