Hello friends I live in a state where freshwater stingrays are illegal and I was planning to set up a 200 gallon 6ftx2.2ftx2.2ft aquarium. In addition to them being illegal my tank is too small for most species of stingrays. When I asked my lfs about alternativs they had no clue on what to add, I was also planning on adding larger carnivourus fish such as a Gymnothorax polyuranodon moray eel and/or fire eel, an african butterfly, an as of yet undecided type of catfish, and some red tailed barracudas. So can you think of any alternatives that are simular to stingrays in behavior and appearance that would fit well with the planned tank?