So, I'll sell the fish and hopefully rock to LFS, remove the live sand, and thoroughly clean the entire tank and all equipment with fresh water. Then add new aquarium sand that's been rinsed until the water is clean and decor that won't injure catfish (a cave or two and some live plants in terra cotta pots). For stock I was thinking a single angelfish, a school of black skirt tetras, and a school of cory cats. I want panda corys but I'll check on their preferred temperature range and find a species that is in the same range as an angelfish.
That all sound good? Anything I need to change? The stand that I have can hold a 55 gallon on top. I MIGHT be able to convince the boy to upgrade to a taller tank. Possibly. With a lot of bribing.