A closeup shot of a pea puffer face on a black background
Pea puffers generally reach a length of 1-inch long.
A pea puffer eating from the bottom of an aquarium
Pea puffers have become popular aquarium fish, especially in nano aquariums, due to their small size.
Pea puffer in profile against black background
Pea puffers have yellowish bodies and dark iridescent patches along their dorsal surfaces and flanks.
Aquarist hand-feeding pea puffers
Female pea puffers are rounder and slightly larger than males.
A pea puffer swimming near aquatic plants
Male pea puffers have a dark stripe down the center of their belly and a blue wrinkles around their eyes, which females do not.