I never do a WC unless we have a power outage, then tank does itself. Never check balances, test water, or even monitor the temp, I have a heater, that is set, Never vac, I do clean inside and outside glass every month, about same time every month, I pull the media drawer and replace ((media is 1 piece of felt, 2 pieces of batting)) Tank gets 1 drip of city water every minute, and I do have a auto top off setup.
I love it. Did cause me to loss my stock once, my fault for being lazy, but the drip regulator came off and the tank was getting a steady stream of city water until I am guessing the temp got way to low, and water balance was off the charts.