Well I just purchase my motoro ray about 2 weeks ago and thought about adding some fish to the tank now. I went out and purchase 2 tin foil barbs about 6in. each. My ray is about 5in. disc size. Well I notice how one of the barbs has a snipped tail fin. I bought the barbs yesterday and noticed it when I placed them in my tank. It's not my ray, but it must of been the tank it was housed in: 90g allon tank with 8 silver dollars, 2 bichers, 1 silver arowana, 8 tinfoil barbs, 3 gold tin foil barbs and a massive breeder pleco (20in.). The tank was crowded as you can see. Well the question is can I use aquarium salt to treat my barb's wound? Is aquarium salt safe for my ray?