good points, food, what will they thrive on?

for structure I plan to sink a couple of pallets.

for the water where it will be I wont be able to replace with pond water and I figure that I cant use my tap water as it is chlorinated. I have a well close by I could use but it is a limited hand dug well which I could probably use. as long as I didnt have to rely on totally filling the tank

A little snow, Please!