Can otocinclus live with kribensis?

Verdict
Yes

Yes. Otocinclus and kribensis get along in the same tank. Both are fine at 75–79°F. Plan on at least 30 gal.

OtocinclusOtocinclus72–79°F · pH 6–7.5 KribensisKribensis75–80°F · pH 6–7.5

Why it works

Water side by side

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

Size to scale

Otocinclus · 2 inKribensis · 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

OtocinclusKribensis
Temperature72–79 °F75–80 °F
pH6–7.56–7.5
Adult size2.0 in4.0 in
Minimum tank20 gal30 gal
TemperamentPeacefulSemi-aggressive
Swims atBottomBottom
GroupGroups of 6+Alone or in pairs
DietHerbivoreOmnivore

Better tank mates for otocinclus

All otocinclus tank mates

Better tank mates for kribensis

All kribensis tank mates

Questions

Can otocinclus live with kribensis?

Yes. Otocinclus and kribensis get along in the same tank. Both are fine at 75–79°F. Plan on at least 30 gal.

What temperature suits both otocinclus and kribensis?

75–79 °F. Otocinclus need 72–79 °F, kribensis need 75–80 °F.

What size tank do otocinclus and kribensis need together?

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