This is a snap shot taken last weekend. I was stood in my living room with just the tank lights on. The marine tank is 125 litres and the planted nano is 25 litres. I live away from home during the week and maintain these tanks once a month. Weekends with my wife and children are too precious to spend time getting my hands wet! However, once a month I'll spend a few hours on water changes, filter cleaning, pruning etc. In my absence, daily, my daughters feed all of the fish and fertilise the planted nano. Both tanks have hoods so evaporation isn't an issue. I don't have TV in my accommodation away from home, so when I do get home I'm torn between watching TV or my aquariums. The aquariums usually win!