I have worked out a system for my fish. OK here it is. I mark a date that I am doing something speicel say mixing medication and conditioner or preping my spawn tank and even starting spawns. But If I hold of on it for one day I put in 5 dollars into a little pile and if I hold of on it another day I put in 5 more dollars. See but I can't take the money out until the end of the month and then the only thing I can do with the money at the end of the month is get more food, bigger tanks, or more med stuff for the fish. So I am really paying out to the fish. Plus I cant spend it on anything else! So I worked out a system for myself plus the fact is I do not have much money