Can rams live with rainbow sharks?

Verdict
Yes, with care

Yes, with care. Rams and rainbow sharks can share a tank, but watch one thing. They only share 80°F. Keep the heater set there and steady.

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 80°German blue ram 80–86°Rainbow shark 72–80°
The green band is the temperature range both can live in.
456789Both: 6.5–7German blue ram 5–7Rainbow shark 6.5–7.5
The green band is the pH both tolerate.

Size to scale

German blue ram · 2.5 inRainbow shark · 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

German blue ramRainbow shark
Temperature80–86 °F72–80 °F
pH5–76.5–7.5
Adult size2.5 in6.0 in
Minimum tank20 gal55 gal
TemperamentPeacefulSemi-aggressive
Swims atBottomBottom
GroupAlone or in pairsOne per tank
DietOmnivoreOmnivore

Better tank mates for rams

All german blue ram tank mates

Better tank mates for rainbow sharks

All rainbow shark tank mates

Questions

Can rams live with rainbow sharks?

Yes, with care. Rams and rainbow sharks can share a tank, but watch one thing. They only share 80°F. Keep the heater set there and steady.

What temperature suits both rams and rainbow sharks?

80–80 °F. Rams need 80–86 °F, rainbow sharks need 72–80 °F.

What size tank do rams and rainbow sharks need together?

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