yes i used to have one of the dasyatis sabina/ florida ray when i lived in texas and i kept it in brackish water actually and it seemed to put less stress on the ray by not soaking in so much pure freshwater and having to pee it out every ten minutes. the ray made it a long while till i threw a big pleco in foolishly and it sucked all the skin off her back so dont mix placo's with stingrays lol but ya it was pretty easy to care for, kept it at 1.015 which was about a quarter cup of marine salt per gallon. just be sure to account for its long tail and good luck if u do decide to get it