You don't need to lift the tank in order to clean the enclosure, a decent canister filter should do the job for you.
My

is 8 inches and lives in a 80 gallon tank. I could barely lift her first 15 gallon tank, it got dirty pretty fast because I had poor filtration. At first, I was a bit terrified at the idea of such a large tank, thinking how on Earth could I clean that monster and, needless to say, the 80 gallon is impossible to even move an inch!

But after reading a few threads here, I realized that it is actually easier to clean the monster than a small tank. And it really is, believe me. Now I only have to clean the filter every two months (rinse the biomedia and sponges), change the carbon monthly, and scoop the mess that falls to the bottom of the tank if Bobo is too lazy to swim and raise it into the filter intake...
Don't feel descouraged, it's obvious that you care for the little one, there are solutions!
