I agree wth repto, that does not seem like a bad price. I would get as much info from the owner as possible. how long has the tank been up. and get as much help from him as you can. I am sure he will want his tank to go to a good home. most of us hold our tanks dear and if anyone of us had to sell them I know we would want them to go to a good home. That is just my 2 cents