new system need help water smell with lr

[fishguy007]

hello, i just set up a new 90 gallon tank.

i filled the tank with water and added the salt.

i bought live rock and added it..

its been set up for two days. after adding the live rock, about a day and a half after, the water is cloudy and the water smells bad.

did i do something wrong? what is happening here. what can i do to fix it?