Can honey gouramis live with siamese algae eaters?

Verdict
Yes

Yes. Honey gouramis and siamese algae eaters make a good pair. Both are fine at 75–79°F. Plan on at least 30 gal.

Honey gouramiHoney gourami72–82°F · pH 6–7.5 Siamese algae eaterSiamese algae eater75–79°F · pH 6.5–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–79°Honey gourami 72–82°Siamese algae eater 75–79°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Honey gourami 6–7.5Siamese algae eater 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Honey gourami · 2 inSiamese algae eater · 6 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 gouramiSiamese algae eater
Temperature72–82 °F75–79 °F
pH6–7.56.5–7.5
Adult size2.0 in6.0 in
Minimum tank10 gal30 gal
TemperamentPeacefulPeaceful
Swims atTopBottom
GroupAlone or in pairsAlone or in pairs
DietOmnivoreHerbivore

Better tank mates for honey gouramis

All honey gourami tank mates

Better tank mates for siamese algae eaters

All siamese algae eater tank mates

Questions

Can honey gouramis live with siamese algae eaters?

Yes. Honey gouramis and siamese algae eaters make a good pair. Both are fine at 75–79°F. Plan on at least 30 gal.

What temperature suits both honey gouramis and siamese algae eaters?

75–79 °F. Honey gouramis need 72–82 °F, siamese algae eaters need 75–79 °F.

What size tank do honey gouramis and siamese algae eaters need together?

At least 30 gal, set by the siamese algae eater. Add space for each extra fish.