What is everyone using to store their topoff water? I am currently using just standard Rubbermaid containers, but I don't think they are food safe. I'm trying to reduce/eliminate any nutrient import, so I'm curious as to what people use, special or like I do, for their topoff water (I use an ATO unit, so my tub holds probably 15-20 gallons). I'm hoping if I can track down nutrient sources that I may cut down on my algae problems.