Can rams live with endlers?

Verdict
Yes, with care

Yes, with care. Rams and endlers can share a tank, but watch one thing. Water chemistry is a squeeze. The only pH that suits both is around 7.

German blue ramGerman blue ram80–86°F · pH 5–7 Endler's livebearerEndler's livebearer72–82°F · pH 7–8

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 80–82°German blue ram 80–86°Endler's livebearer 72–82°
The green band is the temperature range both can live in.
456789Both: 7German blue ram 5–7Endler's livebearer 7–8
The green band is the pH both tolerate.

Size to scale

German blue ram · 2.5 inEndler's livebearer · 1 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 ramEndler's livebearer
Temperature80–86 °F72–82 °F
pH5–77–8
Adult size2.5 in1.0 in
Minimum tank20 gal5 gal
TemperamentPeacefulPeaceful
Swims atBottomTop
GroupAlone or in pairsGroups of 3+
DietOmnivoreOmnivore

Better tank mates for rams

All german blue ram tank mates

Better tank mates for endlers

All endler's livebearer tank mates

Questions

Can rams live with endlers?

Yes, with care. Rams and endlers can share a tank, but watch one thing. Water chemistry is a squeeze. The only pH that suits both is around 7.

What temperature suits both rams and endlers?

80–82 °F. Rams need 80–86 °F, endlers need 72–82 °F.

What size tank do rams and endlers need together?

At least 20 gal, set by the german blue ram. Add space for each extra fish.