i keep lookin at the small saltwater tanks at my lfs and i think id like to try one with some damsels and umm a cleaner wwrasse? i dunno if thats what its called but its jaque on finding nemo anyway is this really hard to do? id be changing my incandescent hood on my tank to a florescent one and adding some live rock to it what else do i need? some kindof special substrate or something im not going to do this yet but hopefully after alot of reading maybe by the end of the summer i just wanna know if its really hard to do