Can severums live with glofish?

Verdict
Yes

Yes. Severums and glofish make a good pair. Both are fine at 74–80°F. Plan on at least 55 gal.

SeverumSeverum74–84°F · pH 6–7 GloFish tetraGloFish tetra72–80°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 74–80°Severum 74–84°GloFish tetra 72–80°
The green band is the temperature range both can live in.
456789Both: 6–7Severum 6–7GloFish tetra 6–7.5
The green band is the pH both tolerate.

Size to scale

Severum · 8 inGloFish tetra · 2.5 in0"1"2"3"4"5"6"7"8"
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

SeverumGloFish tetra
Temperature74–84 °F72–80 °F
pH6–76–7.5
Adult size8.0 in2.5 in
Minimum tank55 gal15 gal
TemperamentSemi-aggressiveSemi-aggressive
Swims atMiddleMiddle
GroupAlone or in pairsGroups of 6+
DietOmnivoreOmnivore

Better tank mates for severums

All severum tank mates

Better tank mates for glofish

All glofish tetra tank mates

Questions

Can severums live with glofish?

Yes. Severums and glofish make a good pair. Both are fine at 74–80°F. Plan on at least 55 gal.

What temperature suits both severums and glofish?

74–80 °F. Severums need 74–84 °F, glofish need 72–80 °F.

What size tank do severums and glofish need together?

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