Can mystery snails live with pictus catfish?

Verdict
Yes

Yes. Mystery snails and pictus catfish make a good pair. Both are fine at 72–79°F. Plan on at least 55 gal.

Mystery snailMystery snail68–82°F · pH 7–8 Pictus catfishPictus catfish72–79°F · pH 6–7.5

Why it works

Water side by side

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

Size to scale

Mystery snail · 2 inPictus catfish · 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 snailPictus catfish
Temperature68–82 °F72–79 °F
pH7–86–7.5
Adult size2.0 in5.0 in
Minimum tank5 gal55 gal
TemperamentPeacefulSemi-aggressive
Swims atBottomBottom
GroupAlone or in pairsGroups of 3+
DietOmnivoreCarnivore

Better tank mates for mystery snails

All mystery snail tank mates

Better tank mates for pictus catfish

All pictus catfish tank mates

Questions

Can mystery snails live with pictus catfish?

Yes. Mystery snails and pictus catfish make a good pair. Both are fine at 72–79°F. Plan on at least 55 gal.

What temperature suits both mystery snails and pictus catfish?

72–79 °F. Mystery snails need 68–82 °F, pictus catfish need 72–79 °F.

What size tank do mystery snails and pictus catfish need together?

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