Welsh
Aquarium Advice Freak
I've noticed one of my neon tetra's swimming frantically back and forth the front of the tank, with its mouth open and gills out. I'm not sure what is wrong with it, the others seem find and even this one is eating and such, it just looks really creepy with its mouth constantly open. I have tried glancing in its mouth, when it comes to the glass and even though its not a proper look, there doesn't seem to be anything lodged inside. It's colour seems to be duller than the rest and its body doesn't seem to be as straight. I hear NTD can affect other fish too,not just neons so i'm wondering what to do.
Thanks
Thanks