Can swordtails live with glofish?

Verdict
Yes

Yes, swordtails and glofish can live together. Both are fine at 72–79°F. Plan on at least 30 gal.

SwordtailSwordtail72–79°F · pH 7–8.3 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: 72–79°Swordtail 72–79°GloFish tetra 72–80°
The green band is the temperature range both can live in.
456789Both: 7–7.5Swordtail 7–8.3GloFish tetra 6–7.5
The green band is the pH both tolerate.

Size to scale

Swordtail · 5 inGloFish 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

SwordtailGloFish tetra
Temperature72–79 °F72–80 °F
pH7–8.36–7.5
Adult size5.0 in2.5 in
Minimum tank30 gal15 gal
TemperamentSemi-aggressiveSemi-aggressive
Swims atMiddleMiddle
GroupGroups of 3+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for swordtails

All swordtail tank mates

Better tank mates for glofish

All glofish tetra tank mates

Questions

Can swordtails live with glofish?

Yes, swordtails and glofish can live together. Both are fine at 72–79°F. Plan on at least 30 gal.

What temperature suits both swordtails and glofish?

72–79 °F. Swordtails need 72–79 °F, glofish need 72–80 °F.

What size tank do swordtails and glofish need together?

At least 30 gal, set by the swordtail. Add space for each extra fish.