Aright, this is my first post so if I mess it up, I'm very sorry! Anyways, Up until last week, my betta fish has been living in a one gallon fish bowl. He was acting abnormally and his fins were falling off. I decided I was going to get him a 2.5 gallon tank (My mother wouldn't let me have a five gallon because she said it was simply too big for one tiny fish, in other words, she didn't believe went I said that most bettas like 5 gallon tanks). I have been treating him with maracyn (about 1/4 a packet a day). This morning, I noticed a brown string hanging from his anus, and I'm not sure if that's normal or not. He also has a white fuzzy thing on one of his spikes via his top fin, but I think it may have just been a string in the water. Do you think I should still treat with rid-ich+? Back to the string! I took some pictures this morning, I'll post the below! Picture 1 Is this normal or should I be worried? I haven't changed his water this week because of the medicine, but it's due for tomorrow. At the moment he has no filter because I had to order a sponge filter (We don't have any stores down here that carry them, and the filters I have tried are far too strong). I feed him "Aquarian Betta Floating Pellet Food" Two pellets a day. He is the only fish I have, so there are no tank mates. When I checked the nitrite, nitrate, pH levels the other day, they were pretty normal...I'm not sure I have a kit for ammonia. My water changes are 50% at least once a week. Am I doing something wrong? Should I be worried about my friend? Thanks for your help guys!