hello all. first time posting here. anyway, my wife is going to buy me a 55 gallon tank kit from walmart for our anniversery. i plan on putting an assortment of cichlids in the tank. i am trying to decide what kind of filtration i will need. i have thought about maybe in the future going sw with it though. the guy at the pet store told me that to do it right i would need a drilled tank with a sump. is this true? if so, can the wally world tank be drilled? not sure if it is tempered or not.... anyway, if not is there any other way to run a sump on a non-drilled tank along with maybe a fluidized bed filter? thanks, tyson