Can rainbow sharks live with glass catfish?

Verdict
Yes

Yes, rainbow sharks and glass catfish can live together. Both are fine at 75–80°F. Plan on at least 55 gal.

Rainbow sharkRainbow shark72–80°F · pH 6.5–7.5 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°Rainbow shark 72–80°Glass catfish 75–80°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Rainbow shark 6.5–7.5Glass catfish 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Rainbow shark · 6 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

Rainbow sharkGlass catfish
Temperature72–80 °F75–80 °F
pH6.5–7.56.5–7.5
Adult size6.0 in3.0 in
Minimum tank55 gal30 gal
TemperamentSemi-aggressivePeaceful
Swims atBottomMiddle
GroupOne per tankGroups of 6+
DietOmnivoreCarnivore

Better tank mates for rainbow sharks

All rainbow shark tank mates

Better tank mates for glass catfish

All glass catfish tank mates

Questions

Can rainbow sharks live with glass catfish?

Yes, rainbow sharks and glass catfish can live together. Both are fine at 75–80°F. Plan on at least 55 gal.

What temperature suits both rainbow sharks and glass catfish?

75–80 °F. Rainbow sharks need 72–80 °F, glass catfish need 75–80 °F.

What size tank do rainbow sharks and glass catfish need together?

At least 55 gal, set by the rainbow shark. Add space for each extra fish.