Can mystery snails live with serpae tetras?

Verdict
Yes

Yes, mystery snails and serpae tetras can live together. Both are fine at 72–79°F. Plan on at least 20 gal.

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 72–79°Mystery snail 68–82°Serpae tetra 72–79°
The green band is the temperature range both can live in.
456789Both: 7–7.5Mystery snail 7–8Serpae tetra 6–7.5
The green band is the pH both tolerate.

Size to scale

Mystery snail · 2 inSerpae tetra · 1.75 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

Mystery snailSerpae tetra
Temperature68–82 °F72–79 °F
pH7–86–7.5
Adult size2.0 in1.75 in
Minimum tank5 gal20 gal
TemperamentPeacefulSemi-aggressive
Swims atBottomMiddle
GroupAlone or in pairsGroups of 6+
DietOmnivoreOmnivore

Better tank mates for mystery snails

All mystery snail tank mates

Better tank mates for serpae tetras

All serpae tetra tank mates

Questions

Can mystery snails live with serpae tetras?

Yes, mystery snails and serpae tetras can live together. Both are fine at 72–79°F. Plan on at least 20 gal.

What temperature suits both mystery snails and serpae tetras?

72–79 °F. Mystery snails need 68–82 °F, serpae tetras need 72–79 °F.

What size tank do mystery snails and serpae tetras need together?

At least 20 gal, set by the serpae tetra. Add space for each extra fish.