Can siamese algae eaters live with kissing gouramis?

Verdict
Yes

Yes, siamese algae eaters and kissing gouramis can live together. Both are fine at 75–79°F. Plan on at least 55 gal.

Siamese algae eaterSiamese algae eater75–79°F · pH 6.5–7.5 Kissing gouramiKissing gourami72–82°F · pH 6–8

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–79°Siamese algae eater 75–79°Kissing gourami 72–82°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Siamese algae eater 6.5–7.5Kissing gourami 6–8
The green band is the pH both tolerate.

Size to scale

Siamese algae eater · 6 inKissing gourami · 10 in0"2"4"6"8"10"
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

Siamese algae eaterKissing gourami
Temperature75–79 °F72–82 °F
pH6.5–7.56–8
Adult size6.0 in10.0 in
Minimum tank30 gal55 gal
TemperamentPeacefulSemi-aggressive
Swims atBottomMiddle
GroupAlone or in pairsAlone or in pairs
DietHerbivoreOmnivore

Better tank mates for siamese algae eaters

All siamese algae eater tank mates

Better tank mates for kissing gouramis

All kissing gourami tank mates

Questions

Can siamese algae eaters live with kissing gouramis?

Yes, siamese algae eaters and kissing gouramis can live together. Both are fine at 75–79°F. Plan on at least 55 gal.

What temperature suits both siamese algae eaters and kissing gouramis?

75–79 °F. Siamese algae eaters need 75–79 °F, kissing gouramis need 72–82 °F.

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

At least 55 gal, set by the kissing gourami. Add space for each extra fish.