Can pea puffers live with black skirt tetras?

Verdict
Yes, with care

Yes, with care. Pea puffers and black skirt tetras can share a tank, but watch one thing. Pea puffers are aggressive. Black skirt tetras hold their own only in a big tank with places to hide.

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 74–80°Pea puffer 74–82°Black skirt tetra 70–80°
The green band is the temperature range both can live in.
456789Both: 7–7.5Pea puffer 7–8Black skirt tetra 6–7.5
The green band is the pH both tolerate.

Size to scale

Pea puffer · 1 inBlack skirt tetra · 2.5 in0"1"2"3"4"5"6"
Adult length in an aquarium. A fish can swallow anything that fits in its mouth, roughly a third to half its own length for predators.

Care at a glance

Pea pufferBlack skirt tetra
Temperature74–82 °F70–80 °F
pH7–86–7.5
Adult size1.0 in2.5 in
Minimum tank5 gal15 gal
TemperamentAggressiveSemi-aggressive
Swims atAll levelsMiddle
GroupAlone or in pairsGroups of 6+
DietCarnivoreOmnivore

Better tank mates for pea puffers

All pea puffer tank mates

Better tank mates for black skirt tetras

All black skirt tetra tank mates

Questions

Can pea puffers live with black skirt tetras?

Yes, with care. Pea puffers and black skirt tetras can share a tank, but watch one thing. Pea puffers are aggressive. Black skirt tetras hold their own only in a big tank with places to hide.

What temperature suits both pea puffers and black skirt tetras?

74–80 °F. Pea puffers need 74–82 °F, black skirt tetras need 70–80 °F.

What size tank do pea puffers and black skirt tetras need together?

At least 15 gal, set by the black skirt tetra. Add space for each extra fish.