Absolytly normal. Turn on your filters, protein skimmer, heater. Add some bacteria and get some live rock. Sometimes after you put a lot of live rock in your tank the water will get cloudy again, so your better off starting with everything right away. After 2 weeks you can buy some cheap damsels 1 or 2 that will help you speed up the cycling process. Take them out befor you add any expensive fish. Damsels can be very aggressive.