This is technically a rebuild of my home office aquarium, but it turned out to be a full replacement of almost all of the parts. Originally, I had 25 gallon 18x18x18 cube on a wooden stand. However, I found that the stand felt crammed and made it difficult to do maintenance and upkeep, so I purchased a larger 24x24 stand. However, after looking at the smaller tank sitting on the large stand, I figured it would be a waste of space sitting a much smaller tank on that stand, so a larger tank was ordered!