Can severums live with glowlight tetras?

Verdict

Yes, with care

Yes, with care. Severums and glowlight tetras can share a tank, but watch one thing. At 8 inches a severum can swallow a small glowlight tetra. Fast, alert fish usually stay out of reach.

Severum74–84°F · pH 6–7

Glowlight tetra74–80°F · pH 6–7.5

What to watch

Watch outAt 8 inches a severum can swallow a small glowlight tetra. Fast, alert fish usually stay out of reach.

What works

Both are fine at 74–80°F.
pH 6–7 suits both.

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

	Severum	Glowlight tetra
Temperature	74–84 °F	74–80 °F
pH	6–7	6–7.5
Adult size	8.0 in	1.5 in
Minimum tank	55 gal	10 gal
Temperament	Semi-aggressive	Peaceful
Swims at	Middle	Middle
Group	Alone or in pairs	Groups of 6+
Diet	Omnivore	Omnivore

Better tank mates for severums

All severum tank mates

Better tank mates for glowlight tetras

All glowlight tetra tank mates

Questions

Can severums live with glowlight tetras?

Yes, with care. Severums and glowlight tetras can share a tank, but watch one thing. At 8 inches a severum can swallow a small glowlight tetra. Fast, alert fish usually stay out of reach.

What temperature suits both severums and glowlight tetras?

74–80 °F. Severums need 74–84 °F, glowlight tetras need 74–80 °F.

What size tank do severums and glowlight tetras need together?

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