fish? He got sucked into my gravel cleaner, and he is swimming normally but I can see one of his scales is sticking straight up. I want to give him medicine for it. What I have is Stress Coat and the instructions say 2TSP per 10 gallon to help repair skin and fins and replace slime coating. Do you think it would be okay to put it in with both of them in the tank? The other fish was not injured.