This is my grandmas betta. Due to her being in the hospital her betta did not get the proper care he needed and deserved. i’m very upset about this. I treated him for dropsy about two weeks ago he had pine cone fins and a huge stomach when i found him and his tank water was completely brown and there was rotting food in there as well. he’s doing great other than his fins now. he definitely had bad water quality and brown algae. I want to know if this is some type of burn from his water or fin rot. he’s eating and active and in a one gal quarantine tank until he is okay to go back to my grandmas tank. I have cleaned out his entire tank and in the process of recycling it.