Can pea puffers live with severums?

Verdict

Yes, with care

Yes, with care. Pea puffers and severums can share a tank, but watch one thing. Water chemistry is a squeeze. The only pH that suits both is around 7.

Pea puffer74–82°F · pH 7–8

Severum74–84°F · pH 6–7

What to watch

Watch outWater chemistry is a squeeze. The only pH that suits both is around 7.
Watch outAt 8 inches a severum can swallow a small pea puffer. Fast, alert fish usually stay out of reach.
Watch outPea puffers are aggressive. Severums hold their own only in a big tank with places to hide.

What works

Both are fine at 74–82°F.

Water side by side

The green band is the temperature range both can live in.

The green band is the pH both tolerate.

Size to scale

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 puffer	Severum
Temperature	74–82 °F	74–84 °F
pH	7–8	6–7
Adult size	1.0 in	8.0 in
Minimum tank	5 gal	55 gal
Temperament	Aggressive	Semi-aggressive
Swims at	All levels	Middle
Group	Alone or in pairs	Alone or in pairs
Diet	Carnivore	Omnivore

Better tank mates for pea puffers

CrayfishYes

All pea puffer tank mates

Better tank mates for severums

All severum tank mates

Questions

Can pea puffers live with severums?

Yes, with care. Pea puffers and severums can share a tank, but watch one thing. Water chemistry is a squeeze. The only pH that suits both is around 7.

What temperature suits both pea puffers and severums?

74–82 °F. Pea puffers need 74–82 °F, severums need 74–84 °F.

What size tank do pea puffers and severums need together?

At least 55 gal, set by the severum. Add space for each extra fish.