I've noticed a change in my first betta over the past 2 weeks. I bought him from petsmart a little over a year ago, and from what I remember he was a lot bigger than my 3 month old from a breeder and even my other betta from petco, so I'm assuming he was about 6 months to a year already when I got him. Hes my only betta I've never had fin rot, disease, etc (knock on wood) but hes been nothing but healthy and easy as far as care since I got him. He will be my first fish to pass from old age which isn't a good thing but still nice to say because I've only had fish pass from disease or parasites. I'm just trying to nail down if hes sick or getting old, I've never had a fish this old since starting the hobby. Hes in a 5 gallon planted, with heater and filter. This tank has been running for over a year, ammonia and nitrites are always 0 and nitrates 5ppm because it's just him, a nerite, a ghost shrimp, and a small accidentally colony of MTS. I've noticed recently hes starting to have a hard time lunging for his food. Hes been missing a lot and seems like he has a harder time seeing it. Hes always been lazy, even for a betta. He always preferred to just lazily chill on his betta leaf or under his driftwood but anymore he NEVER swims about the tank. Just moves from one spot to the other. He really likes to sit on top of my heater and kind of curves himself around the cord to hold himself in place. His coloring isn't as bright but not dull. His fins are long but scrappy, partly from my higher pH. I've noticed hes lost a scale or two on his head, and I rarely see his gills flapping or mouth open and close like they do when they're breathing. No signs of disease....does this sound like old age to you guys who have experienced old bettas?