Can black neon tetras live with glofish?

Verdict
Yes

Yes. Black neon tetras and glofish make a good pair. Both are fine at 73–80°F. Plan on at least 15 gal.

Black neon tetraBlack neon tetra73–81°F · pH 5.5–7.5 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: 73–80°Black neon tetra 73–81°GloFish tetra 72–80°
The green band is the temperature range both can live in.
456789Both: 6–7.5Black neon tetra 5.5–7.5GloFish tetra 6–7.5
The green band is the pH both tolerate.

Size to scale

Black neon tetra · 1.5 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

Black neon tetraGloFish tetra
Temperature73–81 °F72–80 °F
pH5.5–7.56–7.5
Adult size1.5 in2.5 in
Minimum tank15 gal15 gal
TemperamentPeacefulSemi-aggressive
Swims atMiddleMiddle
GroupGroups of 6+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for black neon tetras

All black neon tetra tank mates

Better tank mates for glofish

All glofish tetra tank mates

Questions

Can black neon tetras live with glofish?

Yes. Black neon tetras and glofish make a good pair. Both are fine at 73–80°F. Plan on at least 15 gal.

What temperature suits both black neon tetras and glofish?

73–80 °F. Black neon tetras need 73–81 °F, glofish need 72–80 °F.

What size tank do black neon tetras and glofish need together?

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