I never run a tank without a sump much less a fuge or a skimmer. this is a really big discussion in our hobby. some people believe you don't need one st all and fun canister filters. some still run wet/dry with a skimmer. everyone's tank is different and what may work for one may not work for the other. I personally would love to have a designated fish room and have the tank in wall with all the equipment hidden behind.