I am getting a 125gal setup from my brother in law. I would like to ultimately like to reset it up for a stingray one of the smaller species though to make sure it has room to get around. So I guess does anyone have any experience with stingrays and what kind of setup would be needed and what other tank mates could I put in there with him. I have been doing a little reading online and I know to use a fine sand and also stay away from sharp and jagged decor. Thank you to all that look and reply. Any help/advice is greatly appreciated.