Hello Betta fish community! I am somewhat of a newbie here and recently got my first betta yesterday. His name is Sushi! :D I saw him a week ago then came back and got him yesterday because I knew he was the one for me. Now time to explain! I know he is ill but I can't seem to find out what exactly is the problem! At first I thought it was fin rot but then decided he may just be tail biting. He is very energetic and flaring, he also responds to me and seems completely happy. But his body is a dark greyish-brown. Anyways here are the symptoms to make it short!
-loss of color on the body, grey/brown with a bit of purple near the back
-spiting out food (maybe bc he is so excited he isnt hungry? he ate a little bit but didn't finish a full pellet
-top fin seems to have been torn or is just clamped(tail biting maybe?)
-a small red dot on the back of his head, almost like a small open wound
-possible whitish stringy poop
From what I looked up he may have either
I added some Quick Cure just in case and tomorrow I will be getting some Aquarium Salt. But I don't know what else to get and I just can't figure out what is wrong! I'm hoping that he is this way from being in the dirty cup. Please help!