Hi, so today I got 1 julii to upgrade the school. I put it in the quarantine tank. He seems to have a sunken place next to the gills.00He's also curled up. Is it because he's lonely in there? Do you think I should put him into the tank so that he won't become stress of 0? Or should I quarantine, making him alone. He does have barbells. He also swims really fast which makes me worry, and also, he breathes fast. It's really hard to take the Pic of the sunken part.
Heres the Pic for the sunken part.