Can glass catfish live with black neon tetras?

Verdict
Yes

Yes, glass catfish and black neon tetras can live together. Both are fine at 75–80°F. Plan on at least 30 gal.

Glass catfishGlass catfish75–80°F · pH 6.5–7.5 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: 75–80°Glass catfish 75–80°Black neon tetra 73–81°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Glass catfish 6.5–7.5Black neon tetra 5.5–7.5
The green band is the pH both tolerate.

Size to scale

Glass catfish · 3 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

Glass catfishBlack neon tetra
Temperature75–80 °F73–81 °F
pH6.5–7.55.5–7.5
Adult size3.0 in1.5 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 black neon tetras

All black neon tetra tank mates

Questions

Can glass catfish live with black neon tetras?

Yes, glass catfish and black neon tetras can live together. Both are fine at 75–80°F. Plan on at least 30 gal.

What temperature suits both glass catfish and black neon tetras?

75–80 °F. Glass catfish need 75–80 °F, black neon tetras need 73–81 °F.

What size tank do glass catfish and black neon tetras need together?

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