neon tetra disease help

I hope this message finds you well. I'm currently facing some challenges with my aquarium, and I was hoping to get some advice. After a recent 5-day treatment with Jungle Fungus Clear and Kanaplex for suspected columnaris in my tank, I've noticed that one of my Neon Tetras is exhibiting...

Hi there,   I have a problem, one of my tetras is sick and I do not know what disease it is. I need help. I thought it is ich and have been treating for ich for over a week now. the funny thing is that it is the only fish infected in the whole aquarium even if they were together over 3 days. I...