About a month ago I posted about some of my female bettas bloating. It had been decided that it was most likely from overfeeding. I didn't even get a chance to change my feeding method before one of them (Zombie) passed, and a few weeks later another one (Sky, my baby u_u) passed for no apparent reason. I had two left (Sapphire and AJ) and their bloating went down with time. A few days ago I did a water change. At the same time, I'd added two fish, and moved a few others. AJ used to pick on Sapphire in the past, but that seemed to lessen and almost stop completely with the tank being more empty. After the water change I noticed Sapphire was becoming slightly less active. I didn't think much of it until she became less interested in food (especially mealworms) and her color also seemed to be fading a bit. I was treating the tank with Microbe-Lift Artemis (Bacterial), Microbe-Lift Herbtana (Parasitic), and DrTim's Aquatics First Defense (Stress/Immune) as a precaution after the stress of the water change anyway so I figured that would resolve anything wrong with her as well. Unfortunately it seems I was wrong. Yesterday I discovered the tell-tale sign of dropsy (which some say is the indicator that whatever the disease is has progressed too far to save the fish). She was pineconing. She also had a clamped fin and some kind of white growth-looking thing under the top of her right gill. I'm really hoping what people say is wrong about the pineconing. Even if it is, I'd like some help determining what the white growth is in case it's something that could affect the rest of my fish. Since I'm the worst fishkeeper alive, I do not have a hospital tank right now u_u" I have separated her from the rest of the fish using a net breeder both to prevent her from stress and for the sake of the rest of the fish if that could help in any way. Some may say that was counter productive (in terms of preventing stress), but her color does seem to have returned. She's not eating at all (you can see some flakes in the photos) and she just sits still in that corner other than to do this weird kind of shake/shiver thing (and actually flare out her scales) when she's reaching up for air. With a broken heart I've accepted that her prognosis is very grave, but can anyone help me identify what that thing is under her gill (and maybe a way to get rid of whatever it is)? It's very concerning to me. It doesn't look like ich and I have no idea what it could be except maybe some kind of fungus or parasite. Please help. Even if I can't save her I have to do what I can to protect the rest of my babies u_u"