The more I observe Mr. P, the more I notice about his adorable little fishy-body. Noticed specifically that he has two different colored pectoral fins. His right fin is basically the color of his body. Red, edged in teal, very solid. His left pectoral fin is dark near his body, and almost clear as it spreads outward. I read somewhere that a clear pectoral is indicative of being new growth. I also looked into the possibility of fin rot, but Parli is acting normally, healthy appetite and all. He does't show any usual signs of a sick fish, and I would think that if fin rot were so advanced, he would show some signs of sickness, like decreased activity or loss of appetite. He uses his different looking pectoral to swim about just as much as the normal colored one and doesn't clamp it to his side.
What do you think? Is it typical for a betta (he's a Petsmart purchase) to have different colored pectoral fins?