I Just went on my up keep time, takes me about 2hrs daily to do all the tanks. 50% wcs and such, wiping tanks down, feeding, etc. While I'm doing that I usually get my watching in, but probably another hour or so a day I spend observing most of the fish to make sure everyone is healthy and acting right. Weekends are different, usually sundays I do all my major stuff, I'll spend 3-4hrs on that each saturday. All depends.