Biting frequently occurs in the same area. I have several females that get bitten by males in exactly the same spot everytime they breed. It's possible, although I admit a little unlikely.
I've used nitrofurazone to treat ray issues like this. It was recommended in Dr. Ross' book as a treatment that can be added to the water and does not need to be injected. It turns the water a nasty yellow color, but did the trick. You can get it from fishman chemical llc. They do have a website.
Pat
Amazon Stingrays
I've used nitrofurazone to treat ray issues like this. It was recommended in Dr. Ross' book as a treatment that can be added to the water and does not need to be injected. It turns the water a nasty yellow color, but did the trick. You can get it from fishman chemical llc. They do have a website.
Pat
Amazon Stingrays