does the subject want to ask "where is the second-hand fish tank market in Tongliang, Chongqing"? Zhongnan Road, Tongliang District, Chongqing. There are many second-hand markets in Tongliang District, Chongqing, among which there is a market called Huijia Second-hand Trading Market, which has a shop specializing in selling second-hand fish tanks, located in Zhongnan Road, Tongliang District, Chongqing. Tongliang District is located in the upper reaches of the Yangtze River, the western part of Chongqing, Chongqing metropolitan area and the new urban development zone. It is the hometown of Qiu Shaoyun, a special hero of Chinese people's Volunteer Army, and the birthplace of Tongliang Dragon Lantern.