When I have time...
I mist frogs who are not in breeding tanks(don't have running water once a day) while our breeder tanks are misted 3-4 times a week. More, if I want to induce breeding.
Cleaning the glass is done when someone is coming over to see the frogs or when I have the free time (which has been very limited) to get them cleaned up. I try to limit the interferance in the breeding tanks as much as possible. I found early one, the more you mess with them the more I stressed them out..., the more chance you have for escapes, etc. In addition, I usually only clean the front glass completely, because the algae provides a visual barrier between the tanks.
After the tanks are cleaned I will keep the glass cleaned up by using a heavy stream from the sprayer on the front glass.
Although the tanks might 'look dirty' the algae is another plant that takes care of the waste products in the tank - so I let it go and keep the tanks clean when I can.
6 times a year I do a water change in the tanks using a python. I do this by turning the pumps off and drain all the existing water from the tank. I then replace it with distilled and start the pump again.
Right now all our tanks are set up as breeders, so there isn't much to see. I am working on a couple of display tanks, and those will have the glass cleaned once a week.
So, for those of you who wonder why I never post any tank pics, it is because they are very inadequate compared to everyone else's.