Newbie .. just starting out ... ITS CLOUDY

[Sam1969]

OK .. so I got me a tank with a sump, built a stand and an overflow.. filled it with water and turned on the pump .. it holds water and pumps it up .. time for salt ... level is 1.024 ... time for sand .. put in 80 lbs ( 44 gal tank with 30 gal sump ). Now its so cloudy I cant see the back of the tank or any of the plumbing, there is lots of foam on top ... and has been like this for several hours .. What do I need to do ? What did I do wrong ? should I turn off the sump and let things settle ?