I'm happy to find this topic! I have a young betta, his body was about an inch long when I bought him three months or so ago. He's active and responds to my presence. I found these red spots on his tail fin this morning that weren't there yesterday. Do I have too much going on in the tank with him? I had to be away for 6 weeks for medical reasons and a friend was feeding and water changing for me (she's fabulous) because Mr. Pink's tank and another are at work. I mention this because his tail was very smooth when I was able to return to lab and now it's ragged and even worse now he looks like he's injured. He was not very active while I was away. Should I take out some of the plants, the stone? He's so personable, I want him to be healthy and happy.