I have three containers on my deck in which I planted three tomato plants.* My question is, how much watering should I do?* Should I water every night when the weather is warm/hot? Or should I just water every other day?.* I have good drainage in my pots but at the same time I do not want to over water.* I am new at this because this is the first year I've tried doing this.* Some of the leaves are curling and I don't know what to make of that...Moreover I have a lot of foilage but only two or thee little tomato balls on each plant...Is that normal?....Any advice would be greatly appreciated.