Can paradise fish live with glowlight tetras?

Verdict
Yes

Yes. Paradise fish and glowlight tetras make a good pair. Both are fine at 74–79°F. Plan on at least 20 gal.

Paradise fishParadise fish61–79°F · pH 6–8 Glowlight tetraGlowlight tetra74–80°F · pH 6–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 74–79°Paradise fish 61–79°Glowlight tetra 74–80°
The green band is the temperature range both can live in.
456789Both: 6–7.5Paradise fish 6–8Glowlight tetra 6–7.5
The green band is the pH both tolerate.

Size to scale

Paradise fish · 3.5 inGlowlight 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

Paradise fishGlowlight tetra
Temperature61–79 °F74–80 °F
pH6–86–7.5
Adult size3.5 in1.5 in
Minimum tank20 gal10 gal
TemperamentSemi-aggressivePeaceful
Swims atTopMiddle
GroupOne per tankGroups of 6+
DietOmnivoreOmnivore

Better tank mates for paradise fish

All paradise fish tank mates

Better tank mates for glowlight tetras

All glowlight tetra tank mates

Questions

Can paradise fish live with glowlight tetras?

Yes. Paradise fish and glowlight tetras make a good pair. Both are fine at 74–79°F. Plan on at least 20 gal.

What temperature suits both paradise fish and glowlight tetras?

74–79 °F. Paradise fish need 61–79 °F, glowlight tetras need 74–80 °F.

What size tank do paradise fish and glowlight tetras need together?

At least 20 gal, set by the paradise fish. Add space for each extra fish.