I use de-chlorinated for spraying the plants- if I have to , and distilled for the glass.
I use a little 5" shower squeegee-- works great. ( one for each tank ) Gatzies - HomePro Shower Squeegee
its just my smaller tank gets the window sprayed and i have to move some branches to clean it and i hate disturbing everything, a bit of a design flaw but looks good XD