Can mystery snails live with black skirt tetras?

Verdict
Yes

Yes, mystery snails and black skirt tetras can live together. Both are fine at 70–80°F. Plan on at least 15 gal.

Mystery snailMystery snail68–82°F · pH 7–8 Black skirt tetraBlack skirt tetra70–80°F · pH 6–7.5

Why it works

Water side by side

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

Size to scale

Mystery snail · 2 inBlack skirt tetra · 2.5 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 snailBlack skirt tetra
Temperature68–82 °F70–80 °F
pH7–86–7.5
Adult size2.0 in2.5 in
Minimum tank5 gal15 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 black skirt tetras

All black skirt tetra tank mates

Questions

Can mystery snails live with black skirt tetras?

Yes, mystery snails and black skirt tetras can live together. Both are fine at 70–80°F. Plan on at least 15 gal.

What temperature suits both mystery snails and black skirt tetras?

70–80 °F. Mystery snails need 68–82 °F, black skirt tetras need 70–80 °F.

What size tank do mystery snails and black skirt tetras need together?

At least 15 gal, set by the black skirt tetra. Add space for each extra fish.