Possible Sick Red Tail Shark

[Dbutler624]

I've had my Red Tail Shark for about 3 months now, I recently noticed these spots on its side. Is something wrong with it? Also can anyone tell if Mines male or female

 

[schpanky]

Honestly he doesn't look sick. Sometimes they get scratched when swimming, but it's kid of hard to tell from the pic. Is he behaving differently than normal? I don't know what sex it its.