Can glass catfish live with electric blue acaras?

Verdict
Yes

Yes. Glass catfish and electric blue acaras get along in the same tank. Both are fine at 75–80°F. Plan on at least 30 gal.

Glass catfishGlass catfish75–80°F · pH 6.5–7.5 Electric blue acaraElectric blue acara72–82°F · pH 6.5–7.5

Why it works

Water side by side

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

Size to scale

Glass catfish · 3 inElectric blue acara · 6 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 catfishElectric blue acara
Temperature75–80 °F72–82 °F
pH6.5–7.56.5–7.5
Adult size3.0 in6.0 in
Minimum tank30 gal30 gal
TemperamentPeacefulSemi-aggressive
Swims atMiddleMiddle
GroupGroups of 6+Alone or in pairs
DietCarnivoreOmnivore

Better tank mates for glass catfish

All glass catfish tank mates

Better tank mates for electric blue acaras

All electric blue acara tank mates

Questions

Can glass catfish live with electric blue acaras?

Yes. Glass catfish and electric blue acaras get along in the same tank. Both are fine at 75–80°F. Plan on at least 30 gal.

What temperature suits both glass catfish and electric blue acaras?

75–80 °F. Glass catfish need 75–80 °F, electric blue acaras need 72–82 °F.

What size tank do glass catfish and electric blue acaras need together?

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