Can ember tetras live with glass catfish?

Verdict
Yes

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

Ember tetraEmber tetra73–84°F · pH 5.5–7 Glass catfishGlass catfish75–80°F · pH 6.5–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–80°Ember tetra 73–84°Glass catfish 75–80°
The green band is the temperature range both can live in.
456789Both: 6.5–7Ember tetra 5.5–7Glass catfish 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Ember tetra · 0.8 inGlass catfish · 3 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

Ember tetraGlass catfish
Temperature73–84 °F75–80 °F
pH5.5–76.5–7.5
Adult size0.8 in3.0 in
Minimum tank5 gal30 gal
TemperamentPeacefulPeaceful
Swims atMiddleMiddle
GroupGroups of 6+Groups of 6+
DietOmnivoreCarnivore

Better tank mates for ember tetras

All ember tetra tank mates

Better tank mates for glass catfish

All glass catfish tank mates

Questions

Can ember tetras live with glass catfish?

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

What temperature suits both ember tetras and glass catfish?

75–80 °F. Ember tetras need 73–84 °F, glass catfish need 75–80 °F.

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

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