display tank, maximum size you're comfortable with

[Boomboy]

i have an 80G cube, with 20G sump and 25 Refugium underneath the whole tank, im on a second story low rise apartment, and when it comes time to move into our first home probably wont go more than a 150G due to probably moving again, i moved my other tanks around about 5 times, you get pretty tired of doing it. For my max tank, probably around 300G or so, with it being a deeper tank than longer, and nothing taller than 24" probably less at 22" after having a 24", i like the height but im always on top of my stool, reaching up to my armpits. but of course i would just get a tank that fits a space i had in my house perfectly, always wanted a roomdivider tank.