Ricky, All the previous posts are dead on. I use a Styrofoam lined type minnow bucket, this seems to help also. The ice and the bubble generator is also the best to keep them in a big bucket. If you are camping, I'd make sure I'd have a few bags of Ice and some zip-lock bags to keep the ice in to put with the minnows especially if you want to keep them overnight. The frozen water bottles are the best, but if camping, probably not an option.