I just got my first betta yesterday from Petsmart. He was the prettiest one there, but his fins aren't in perfect shape. Here's a picture
I was concerned about fin rot when I saw the edging on his fins, but it looks blue when he swims around. Could it just be part of his natural coloring?
Also, what can I do to help his fins heal? Should I put some aquarium salt in his tank, or change his water more frequently than usual? He currently only has one plant, and it doesn't seem to have anything on it that would be rough or snag his fins. He's swimming around even more this morning than yesterday and his fins don't look any worse than when I brought him home.