Hi what live rock is good Fiji or other. Can you mix size of rock to make good aquascape caves holes for fish to hide. Sand bed 2,3,4 inches witch is good, is 4 inch sand bed to much. Hard work for a sand sifter and cuc. White sand ok or pink. I want to have a great setup how much live rock for a 150 gallon tank? Any advice please it would be greatly appreciated.