Can assassin snails live with endlers?

Verdict
Yes

Yes, assassin snails and endlers can live together. Both are fine at 75–80°F. Plan on at least 5 gal.

Assassin snailAssassin snail75–80°F · pH 7–8 Endler's livebearerEndler's livebearer72–82°F · pH 7–8

Why it works

Water side by side

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

Size to scale

Assassin snail · 1 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

Assassin snailEndler's livebearer
Temperature75–80 °F72–82 °F
pH7–87–8
Adult size1.0 in1.0 in
Minimum tank5 gal5 gal
TemperamentPeacefulPeaceful
Swims atBottomTop
GroupAlone or in pairsGroups of 3+
DietCarnivoreOmnivore

Better tank mates for assassin snails

All assassin snail tank mates

Better tank mates for endlers

All endler's livebearer tank mates

Questions

Can assassin snails live with endlers?

Yes, assassin snails and endlers can live together. Both are fine at 75–80°F. Plan on at least 5 gal.

What temperature suits both assassin snails and endlers?

75–80 °F. Assassin snails need 75–80 °F, endlers need 72–82 °F.

What size tank do assassin snails and endlers need together?

At least 5 gal, set by the assassin snail. Add space for each extra fish.