This is my betta fish named Gronk. He was purchased from a pet store back in February so I've only had him for a couple of months. He's currently kept in a heated, 1 gallon tank with no filter and because it's so small I do complete water changes once a week. About a week ago I noticed that he had developed some little white spots on his fins. Im positive that it's not ick, I've lost 2 bettas to that so I definitely know how to recognize it. At first I thought it was fin rot but now I'm not so sure...I'll admit that his tank was overdue for a water change and was rather dirty (I know, it kills me ). So I did a complete water change, added about a half teaspoon of aquarium salt, and added a portion of a Jungle brand fungus clear tablet, but the white coloring seems to be spreading. His fins don't appear to be frayed or decaying or any of the other symptoms of fin rot, which is why I'm confused. I know that new fin growth appears clear/white and then obtains color, but this isn't new growth...he's now developed patches of white on all fins, and today I noticed a tiny bit of grayish/white near his gills. I read on another forum that some bettas can change color, but nothing seems to describe what's happening here. He's acting the same as he always has. He's constructed 2 bubble nests since his last water change (3 days ago), he swims around to great me when I come near his tank, and he's eating just like normal. If someone could please tell me what's happening to his fins or if it actually is fin rot I'd be very appreciative!! Thanks in advance Note: I have a photo that I'd like to include but I can't figure out how to attach it so if someone else knows, please let me know!