Porcupine Puffer Swimming Erratically

[kar19]

kar19
My @ 1 year porcupine puffer has been swimming at surface of 400g back and forth while seeming looking at self reflection in rear of tank and rarely swims around the tank surface to bottom? Has been a ferocious raw shrimp, krill, and squid eater but of late not consuming as much. Appears healthy but I've read their thyroid sometimes can be a problem.
Any thoughts? Thanks...Ken

 

[Sweeper13]

Sorry to hear that. Any new additions, did you change the tank decorations? Water is ok? Sometimes they start freaking out, get stressed out. Ive lost 2 Porcs at different times, they where eating great then 1 week later dead. While the other fish are still alive in the same tank. If you have another tank maybe pull him out and leave him by himself. Just offer him food and hope for the best. GL