Considering their natural diet is not vegetation, I wouldn't overdo the peas. As long as its getting plenty of meaty food in its diet, a few peas once in a while shouldn't hurt. There is vegetable matter in frozen formula food, and most puffers love that stuff. You might want to consider doing the frozen formula 1 cubes instead of the peas, though. It's sort of the same effect when the fish is eating it, especially if you break the cube into smaller chunks and then toss them in one at a time. This would be healthier for him in the long term. Too much of the peas could upset the fish's digestive system, which would not be something easy to fix, if even possible.
Other foods you can offer: whole krill, silversides, fresh/frozen squid (uncooked), frozen clams, and small, raw shrimp. Most of this stuff can be found cheaper at the grocery store in the seafood section.
Hope this helps!
Other foods you can offer: whole krill, silversides, fresh/frozen squid (uncooked), frozen clams, and small, raw shrimp. Most of this stuff can be found cheaper at the grocery store in the seafood section.
Hope this helps!