I've got a 200 gallon tank (7-2-2) freshwater setup and am wanting to get a freshwater Atlantic stingray because they are the only species of freshwater stingray that are legal here in Texas. I know they are suppose to be more brackish water to salt water fish but can do well in freshwater if the tank is big enough and the filtration is good. My question is, is my tank big enough to keep one in freshwater? I also do weekly filter cleanings, bi-weekly tank cleanings, and a 25% water change every week or so (give or take a couple days).