Can glass catfish live with apistogramma?

Verdict
Yes

Yes. Glass catfish and apistogramma 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 ApistogrammaApistogramma75–84°F · pH 5–7

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–80°Glass catfish 75–80°Apistogramma 75–84°
The green band is the temperature range both can live in.
456789Both: 6.5–7Glass catfish 6.5–7.5Apistogramma 5–7
The green band is the pH both tolerate.

Size to scale

Glass catfish · 3 inApistogramma · 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

Glass catfishApistogramma
Temperature75–80 °F75–84 °F
pH6.5–7.55–7
Adult size3.0 in3.0 in
Minimum tank30 gal20 gal
TemperamentPeacefulSemi-aggressive
Swims atMiddleBottom
GroupGroups of 6+Alone or in pairs
DietCarnivoreCarnivore

Better tank mates for glass catfish

All glass catfish tank mates

Better tank mates for apistogramma

All apistogramma tank mates

Questions

Can glass catfish live with apistogramma?

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

What temperature suits both glass catfish and apistogramma?

75–80 °F. Glass catfish need 75–80 °F, apistogramma need 75–84 °F.

What size tank do glass catfish and apistogramma need together?

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