Can kribensis live with upside down catfish?

Verdict
Yes

Yes. Kribensis and upside down catfish make a good pair. Both are fine at 75–79°F. Plan on at least 30 gal.

KribensisKribensis75–80°F · pH 6–7.5 Upside down catfishUpside down catfish72–79°F · pH 6–7.5

Why it works

Water side by side

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

Size to scale

Kribensis · 4 inUpside down catfish · 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

KribensisUpside down catfish
Temperature75–80 °F72–79 °F
pH6–7.56–7.5
Adult size4.0 in4.0 in
Minimum tank30 gal30 gal
TemperamentSemi-aggressivePeaceful
Swims atBottomBottom
GroupAlone or in pairsGroups of 3+
DietOmnivoreOmnivore

Better tank mates for kribensis

All kribensis tank mates

Better tank mates for upside down catfish

All upside down catfish tank mates

Questions

Can kribensis live with upside down catfish?

Yes. Kribensis and upside down catfish make a good pair. Both are fine at 75–79°F. Plan on at least 30 gal.

What temperature suits both kribensis and upside down catfish?

75–79 °F. Kribensis need 75–80 °F, upside down catfish need 72–79 °F.

What size tank do kribensis and upside down catfish need together?

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