My first betta ever just passed away this morning. I don't know what to do and I've been crying ever since. I feel like it's my fault and I don't know what to do. He was fine in his 2.5 gallon, but I decided to get a 10 gallon. I cycled it and everything, but didn't know to quarantine the neons before putting them in. And they all died plus him. I feel like I am to blame and I am not a good owner. I just want to give up keeping fish forever because I feel so guilty.
That's one of the first pictures I took of him on the first night I got him. Why?!? I'm so sad.