ok so my girlfriends mother has a betta. she cares about the fish a lot but really knows nothing about taking care of it. i don't fault her for this but feel bad for the fish. it has a nice little tank maybe 2 gallon? i believe she's had it for maybe 3 or 4 months. i also believe it's only had about 3 water changes in that time, all by me when i was over. i've made an agreement with her that i will get and setup a heater, thermometer, and anubias in the tank if she will promise me to do a water change once a week. i don't think the fish looks healthy at all. i don't know a lot about bettas so maybe this is a normal way for the gills to look. black and sticking out? could be normal but it looks weird to me. any suggestions that i could tell her, or do to give this thing a better life would be greatly appreciated.