I'm VERY jealous. I don't know why you even keep spotteds if they come into your yard every year. [Not really, of course I do] Mass. should be paying you as a spotted sactuary or something!

I don't know why you would go with a 150 gallon tank, that seems extreme, especially since you'll only fill it up about six inches, at the most. How big is your setup now? I want to do an outdoor setup in a five-foot oblong galvanized stock tank and then get another female or two and a male.