interpretation of my fish's behavior

my new porcupine puffer keeps swimming left to right near the surface of the water. Are they all active/hyper like this? Or does this mean he is stressed out about not enough space?
the tank is 75g with no other inhabitants. about 80lbs of LR
 
S

sinner's girl

Guest
How's the water? and how long has this fish been in the tank? How big is it?
 
water - time to do a water change, haven't done it for 2 months. the fish's been in the tank for about a day. it's about 5 inches big. it's a 75g
 
my stars and stripes puffer only does that when he is hungry. after i feed him a fish or two he floats back to his hiding place and chills at the bottom of my tank.
 

musipilot

Member
I wouldn't worry, you just described our porcupine's behaviour perfectly. They are very tame, and very human responsive. Does he have a favorite food? Try holding it at one end of the tank, he'll come right over and start spitting water at you until you drop it.
 
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