Can severums live with endlers?

Verdict
Yes, with care

Yes, with care. Severums 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 to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 74–82°Severum 74–84°Endler's livebearer 72–82°
The green band is the temperature range both can live in.
456789Both: 7Severum 6–7Endler's livebearer 7–8
The green band is the pH both tolerate.

Size to scale

Severum · 8 inEndler's livebearer · 1 in0"1"2"3"4"5"6"7"8"
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

SeverumEndler's livebearer
Temperature74–84 °F72–82 °F
pH6–77–8
Adult size8.0 in1.0 in
Minimum tank55 gal5 gal
TemperamentSemi-aggressivePeaceful
Swims atMiddleTop
GroupAlone or in pairsGroups of 3+
DietOmnivoreOmnivore

Better tank mates for severums

All severum tank mates

Better tank mates for endlers

All endler's livebearer tank mates

Questions

Can severums live with endlers?

Yes, with care. Severums 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 severums and endlers?

74–82 °F. Severums need 74–84 °F, endlers need 72–82 °F.

What size tank do severums and endlers need together?

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