Can glowlight tetras live with black neon tetras?

Verdict
Yes

Yes. Glowlight tetras and black neon tetras get along in the same tank. Both are fine at 74–80°F. Plan on at least 15 gal.

Glowlight tetraGlowlight tetra74–80°F · pH 6–7.5 Black neon tetraBlack neon tetra73–81°F · pH 5.5–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 74–80°Glowlight tetra 74–80°Black neon tetra 73–81°
The green band is the temperature range both can live in.
456789Both: 6–7.5Glowlight tetra 6–7.5Black neon tetra 5.5–7.5
The green band is the pH both tolerate.

Size to scale

Glowlight tetra · 1.5 inBlack neon tetra · 1.5 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

Glowlight tetraBlack neon tetra
Temperature74–80 °F73–81 °F
pH6–7.55.5–7.5
Adult size1.5 in1.5 in
Minimum tank10 gal15 gal
TemperamentPeacefulPeaceful
Swims atMiddleMiddle
GroupGroups of 6+Groups of 6+
DietOmnivoreOmnivore

Better tank mates for glowlight tetras

All glowlight tetra tank mates

Better tank mates for black neon tetras

All black neon tetra tank mates

Questions

Can glowlight tetras live with black neon tetras?

Yes. Glowlight tetras and black neon tetras get along in the same tank. Both are fine at 74–80°F. Plan on at least 15 gal.

What temperature suits both glowlight tetras and black neon tetras?

74–80 °F. Glowlight tetras need 74–80 °F, black neon tetras need 73–81 °F.

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

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