Are Pea Puffers territorial fish?
Pea Puffer Pufferfish like to explore their environment, so an aquarium with plenty of hiding places, nooks and crannies will keep them occupied. Pea Puffers thrive in heavily planted tanks that offer the fish plenty of areas to hide, with lots of visual barriers to break up large and open spaces.
Pea puffers like to dig and can be somewhat territorial. So the more plants and hiding spaces you have in the aquarium, the better. Male Pea Puffer Fish can be quite territorial and aggressive towards each, which can be negated by keeping a lone male, or with several females. Most aquarists choose to keep their Pea Puffers in species-only aquariums to avoid the risk.
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