ID please

  • We are currently upgrading MFK. thanks! -neo
They are known to grow about 1"/month. How big is he now? He looks a little skinny, so if he doesn't fatten up in a few weeks, I'd treat him for IPs.
 
He's very small right now, and he does look very skinny, took a piece of krill earlier, he's maybe 2 1/2- 3" right now.
Never treated for IPs, what would the best way to go about this if he doesn't fatten up?
 
Here are some articles for you:
FEEDING PUFFERS

TREATING IPs
 
MonsterFishKeepers.com