Expect to get about half or less on a used tank. The larger the size, the greater the discount because lot a not of people can accommodate or want to deal with it in their home. I marked mine down to half and was able to get it out quickly.Out of curiosity how much did you sell the tank for? I’d love to upgrade my display at some point to a 300+
I chose to start from scratch rather than moving the tank. Don't regret it one bit. Besides, the footprint of the old tank will not work with what we have now.