Kwakatoo
Aquarium Advice Freak
Most of them were on timers. Water change days were Saturdays and Sundays. Most of my tanks were small. Now i only have a 75 gallon, 2 30 gallon and a 20 gallon long.
I'm impressed, that's a lot of work, but you must have had a rhythm on the weekends. You obviously enjoy your tanks, great stuff