welcome to the hobby
-i highly recommend investing in at least a deionizer to reduce undesireable algal growth as mik_101 said, when investing in a nice reef tank, optimum quality source water can make quite a noticeable difference. -As for salt i prefer kent for it's dissolveability, i've tried kent and instant ocean, and preffered kent, it's very fine and dissolves easily, anyways good luck and welcome
