I am thinking of adding a pond and would like to know things to think about when deciding. I was thinking of doing concrete, but not sure cause of temps during summer ( am near palm springs, ca where it gets 116 or so during august). Was thinking of maybe a few hundred gallons or so (pond around 6 foot wide and 8 foot long ranging from 2 foot on 1 end to around 3.5 foot on other end). Any input would be great.