I would. Especially if you will be housing tempermental corals. With pristine water quality your corals will really take off. Good luck with an open top system like that though. My 14 gallon biocube is open top and I cant be gone for a day without coming back to everything being all mad about the change in salinity. An ATO would easily fix that problem but I havent had the time or energy to rig one up between all my other projects. But if you did it would make having a small frag set up way easier.