I'm worried that my ray has an injury on his back - maybe from going under a log? Not sure but looks like a scrape. Anything that I need to be concerned about?
Any chance of a pic with more natural lighting? It doesn't look bad at all, rays heal quickly and very well with good clean water, they're very resilient
Yes. It is ceramic but he has been up the sides of the tank recently and hanging out on the side where the heater is. That is probably it. In this photo you can see him on the back wall next to the heater.