Can ghost shrimp live with otocinclus?

Verdict
Yes

Yes. Ghost shrimp and otocinclus get along in the same tank. Both are fine at 72–79°F. Plan on at least 20 gal.

Ghost shrimpGhost shrimp65–82°F · pH 7–8 OtocinclusOtocinclus72–79°F · pH 6–7.5

Why it works

Water side by side

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

Size to scale

Ghost shrimp · 1.5 inOtocinclus · 2 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

Ghost shrimpOtocinclus
Temperature65–82 °F72–79 °F
pH7–86–7.5
Adult size1.5 in2.0 in
Minimum tank5 gal20 gal
TemperamentPeacefulPeaceful
Swims atBottomBottom
GroupGroups of 3+Groups of 6+
DietOmnivoreHerbivore

Better tank mates for ghost shrimp

All ghost shrimp tank mates

Better tank mates for otocinclus

All otocinclus tank mates

Questions

Can ghost shrimp live with otocinclus?

Yes. Ghost shrimp and otocinclus get along in the same tank. Both are fine at 72–79°F. Plan on at least 20 gal.

What temperature suits both ghost shrimp and otocinclus?

72–79 °F. Ghost shrimp need 65–82 °F, otocinclus need 72–79 °F.

What size tank do ghost shrimp and otocinclus need together?

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