Can platies live with glofish?

Verdict
Yes

Yes. Platies and glofish make a good pair. Both are fine at 72–80°F. Plan on at least 15 gal.

PlatyPlaty70–80°F · pH 7–8.2 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: 72–80°Platy 70–80°GloFish tetra 72–80°
The green band is the temperature range both can live in.
456789Both: 7–7.5Platy 7–8.2GloFish tetra 6–7.5
The green band is the pH both tolerate.

Size to scale

Platy · 2.5 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

PlatyGloFish tetra
Temperature70–80 °F72–80 °F
pH7–8.26–7.5
Adult size2.5 in2.5 in
Minimum tank10 gal15 gal
TemperamentPeacefulSemi-aggressive
Swims atMiddleMiddle
GroupGroups of 3+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for platies

All platy tank mates

Better tank mates for glofish

All glofish tetra tank mates

Questions

Can platies live with glofish?

Yes. Platies and glofish make a good pair. Both are fine at 72–80°F. Plan on at least 15 gal.

What temperature suits both platies and glofish?

72–80 °F. Platies need 70–80 °F, glofish need 72–80 °F.

What size tank do platies and glofish need together?

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