Can glass catfish live with lemon tetras?

Verdict
Yes

Yes. Glass catfish and lemon tetras make a good pair. Both are fine at 75–80°F. Plan on at least 30 gal.

Glass catfishGlass catfish75–80°F · pH 6.5–7.5 Lemon tetraLemon tetra72–82°F · pH 5.5–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–80°Glass catfish 75–80°Lemon tetra 72–82°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Glass catfish 6.5–7.5Lemon tetra 5.5–7.5
The green band is the pH both tolerate.

Size to scale

Glass catfish · 3 inLemon tetra · 2 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

Glass catfishLemon tetra
Temperature75–80 °F72–82 °F
pH6.5–7.55.5–7.5
Adult size3.0 in2.0 in
Minimum tank30 gal15 gal
TemperamentPeacefulPeaceful
Swims atMiddleMiddle
GroupGroups of 6+Groups of 6+
DietCarnivoreOmnivore

Better tank mates for glass catfish

All glass catfish tank mates

Better tank mates for lemon tetras

All lemon tetra tank mates

Questions

Can glass catfish live with lemon tetras?

Yes. Glass catfish and lemon tetras make a good pair. Both are fine at 75–80°F. Plan on at least 30 gal.

What temperature suits both glass catfish and lemon tetras?

75–80 °F. Glass catfish need 75–80 °F, lemon tetras need 72–82 °F.

What size tank do glass catfish and lemon tetras need together?

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