I made a flat shelf on the bottom of stand instead of it being just concrete. Any ideas on what I could put in that area under tank? My sump is perpendicular (I think that’s the correct term?) to the tank. I will have water storage tanks behind tank. Is there any outside of sump equipment I would run on a 225g? I don’t know anything about a calcium reactor, but I thought about if I ran carbon/gfo that could mount under there somewhere. I don’t really have anywhere for a qt tank, and don’t know what all I need for one yet, height wise, not sure if I’d have enough room under there. Any ideas appreciated!

