Can mystery snails live with dwarf neon rainbowfish?

Verdict
Yes

Yes. Mystery snails and dwarf neon rainbowfish get along in the same tank. Both are fine at 75–82°F. Plan on at least 20 gal.

Mystery snailMystery snail68–82°F · pH 7–8 Dwarf neon rainbowfishDwarf neon rainbowfish75–82°F · pH 6.5–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–82°Mystery snail 68–82°Dwarf neon rainbowfish 75–82°
The green band is the temperature range both can live in.
456789Both: 7–7.5Mystery snail 7–8Dwarf neon rainbowfish 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Mystery snail · 2 inDwarf neon rainbowfish · 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 snailDwarf neon rainbowfish
Temperature68–82 °F75–82 °F
pH7–86.5–7.5
Adult size2.0 in2.5 in
Minimum tank5 gal20 gal
TemperamentPeacefulPeaceful
Swims atBottomMiddle
GroupAlone or in pairsGroups of 6+
DietOmnivoreOmnivore

Better tank mates for mystery snails

All mystery snail tank mates

Better tank mates for dwarf neon rainbowfish

All dwarf neon rainbowfish tank mates

Questions

Can mystery snails live with dwarf neon rainbowfish?

Yes. Mystery snails and dwarf neon rainbowfish get along in the same tank. Both are fine at 75–82°F. Plan on at least 20 gal.

What temperature suits both mystery snails and dwarf neon rainbowfish?

75–82 °F. Mystery snails need 68–82 °F, dwarf neon rainbowfish need 75–82 °F.

What size tank do mystery snails and dwarf neon rainbowfish need together?

At least 20 gal, set by the dwarf neon rainbowfish. Add space for each extra fish.