Currently only JBJ 28g mixed reef (while renting) that I've had for just over 2 years now.
Before I moved I also had: 135g FW, 29g Softie tank, 20L and a couple 10g for QT. Sold the 135 rather than move it (no place to store), but that is part of a master plan to upgrade to a 200+g SPS tank...