A couple comments on food/feeding here. Bloodworms are not a good staple food and should only be fed once a week as a treat. This refers to the fresh frozen bloodworms. Freeze-dried are best not fed at all, but if they are (again only once a week) make sure you soak them thoroughly in a bit of tank water; feeding freeze-dried foods that are not completely soaked is dangerous, as the fish eat them and then the moisture swells the food up inside the fish, causing serious issues. This might be part of the "plumpness" you mention.
Froozen daphnia and shrimp would be good foods that can be fed more often than bloodworms. Snails of course are good not only as food but it serves to keep the puffers' "beaks" sharp so they can eat properly.
You need to read entirely before commenting with your "gospel." It comes off pretentious and annoying.
These are dwarf puffers. How much have you researched and learned over 10 years of fish keeping? Maybe a little? Cool. I've spent days researching puffers and specifically dove into dwarfs. This was not on a whim.
These guys have live snails. ONE goes crazy on frozen blood worms, not freeze dried. I tested to see if I could get them to eat freeze dried, some do. And of course I soak them prior.
As we speak I have baby brine shrimp about to hatch.
Being these are pea puffers, they have no beak trimming issues. They can scarf down blood worms multiple times a week. But hey, they have snails to eat if they choose.
Thanks for being another forum expert that didn't read, and wanted to flaunt your expertise. I will probably leave if I encounter one more person like you. It is obnoxious when trying to enjoy the hobby and share.
Not once did I ask, "I'm new to fish keeping. How do I feed these weird things?"
Or
"New tank! What can I add! What is cycling?"
Yet here I am. Originally looking for some tank stock ideas, identifying that I am experienced. Hounded with what my water parameters are and advice on how to cycle a tank. Then told how to feed my puffers. I think my first post made it pretty clear I was not a newbie and was looking for some fun input. Nope, glazed over and fed the responsible fish keeping manual.
Presumptuous responses piss people off. i.e. Me.
/end rant