I have a 225 tank that is freshwater rigft now,that i would like to change to FO or FOWLR.Me set i have is a mag 18 in the sump running the pro-clear 300.Can i use the wet-dry for these set-ups?What type of substrate works the best?Can you use SB sand?And would a ASM g4plus be a good skimmer?I also have 2 6 foot VHOS for lighting