surfer welcome to the SW
hobby! Setup sounds Awesome. d9hp is right i would suggest getting some LR
for sure, and CC
im not sure about that i have heard good and bad stories. I would go with a fine grain of LS
especially if you want to have a sifting star or other substrate fish. Sounds like youll have some fun with that setup. Just BEWARE about the tang the Pacific Blue gets very large! And after some time keeping the tang you may have to sell or trade for a smaller one and they are very hard to get rid of after you have loved him for so long. Clowns are a great starting fish and if you have a pair IMO
i would introduce at same time for better results. DSB
is a live sand, that is great for sifting creatures, CC
is known for having amonia problems i do believe. Good luck to you and happy fishing!