Can rainbow sharks live with sparkling gouramis?

Verdict
Yes, with care

Yes, with care. Rainbow sharks and sparkling gouramis can share a tank, but watch one thing. A grown rainbow shark may treat small sparkling gouramis as food, especially at night.

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–80°Rainbow shark 72–80°Sparkling gourami 72–82°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Rainbow shark 6.5–7.5Sparkling gourami 6–7.5
The green band is the pH both tolerate.

Size to scale

Rainbow shark · 6 inSparkling gourami · 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

Rainbow sharkSparkling gourami
Temperature72–80 °F72–82 °F
pH6.5–7.56–7.5
Adult size6.0 in1.5 in
Minimum tank55 gal5 gal
TemperamentSemi-aggressivePeaceful
Swims atBottomTop
GroupOne per tankGroups of 4+
DietOmnivoreOmnivore

Better tank mates for rainbow sharks

All rainbow shark tank mates

Better tank mates for sparkling gouramis

All sparkling gourami tank mates

Questions

Can rainbow sharks live with sparkling gouramis?

Yes, with care. Rainbow sharks and sparkling gouramis can share a tank, but watch one thing. A grown rainbow shark may treat small sparkling gouramis as food, especially at night.

What temperature suits both rainbow sharks and sparkling gouramis?

72–80 °F. Rainbow sharks need 72–80 °F, sparkling gouramis need 72–82 °F.

What size tank do rainbow sharks and sparkling gouramis need together?

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