Can mystery snails live with rosy barbs?

Verdict
Yes

Yes, mystery snails and rosy barbs can live together. Both are fine at 68–77°F. Plan on at least 30 gal.

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 68–77°Mystery snail 68–82°Rosy barb 64–77°
The green band is the temperature range both can live in.
456789Both: 7–7.5Mystery snail 7–8Rosy barb 6–7.5
The green band is the pH both tolerate.

Size to scale

Mystery snail · 2 inRosy barb · 4 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 snailRosy barb
Temperature68–82 °F64–77 °F
pH7–86–7.5
Adult size2.0 in4.0 in
Minimum tank5 gal30 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 rosy barbs

All rosy barb tank mates

Questions

Can mystery snails live with rosy barbs?

Yes, mystery snails and rosy barbs can live together. Both are fine at 68–77°F. Plan on at least 30 gal.

What temperature suits both mystery snails and rosy barbs?

68–77 °F. Mystery snails need 68–82 °F, rosy barbs need 64–77 °F.

What size tank do mystery snails and rosy barbs need together?

At least 30 gal, set by the rosy barb. Add space for each extra fish.