Can honey gouramis live with otocinclus?

Verdict
Yes

Yes, honey gouramis and otocinclus can live together. Both are fine at 72–79°F. Plan on at least 20 gal.

Honey gouramiHoney gourami72–82°F · pH 6–7.5 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°Honey gourami 72–82°Otocinclus 72–79°
The green band is the temperature range both can live in.
456789Both: 6–7.5Honey gourami 6–7.5Otocinclus 6–7.5
The green band is the pH both tolerate.

Size to scale

Honey gourami · 2 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

Honey gouramiOtocinclus
Temperature72–82 °F72–79 °F
pH6–7.56–7.5
Adult size2.0 in2.0 in
Minimum tank10 gal20 gal
TemperamentPeacefulPeaceful
Swims atTopBottom
GroupAlone or in pairsGroups of 6+
DietOmnivoreHerbivore

Better tank mates for honey gouramis

All honey gourami tank mates

Better tank mates for otocinclus

All otocinclus tank mates

Questions

Can honey gouramis live with otocinclus?

Yes, honey gouramis and otocinclus can live together. Both are fine at 72–79°F. Plan on at least 20 gal.

What temperature suits both honey gouramis and otocinclus?

72–79 °F. Honey gouramis need 72–82 °F, otocinclus need 72–79 °F.

What size tank do honey gouramis and otocinclus need together?

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