Can siamese algae eaters live with clown plecos?

Verdict
Yes

Yes. Siamese algae eaters and clown plecos make a good pair. Both are fine at 75–79°F. Plan on at least 30 gal.

Siamese algae eaterSiamese algae eater75–79°F · pH 6.5–7.5 Clown plecoClown pleco73–82°F · pH 6.5–7.5

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–79°Siamese algae eater 75–79°Clown pleco 73–82°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Siamese algae eater 6.5–7.5Clown pleco 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Siamese algae eater · 6 inClown pleco · 3.5 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

Siamese algae eaterClown pleco
Temperature75–79 °F73–82 °F
pH6.5–7.56.5–7.5
Adult size6.0 in3.5 in
Minimum tank30 gal20 gal
TemperamentPeacefulPeaceful
Swims atBottomBottom
GroupAlone or in pairsAlone or in pairs
DietHerbivoreHerbivore

Better tank mates for siamese algae eaters

All siamese algae eater tank mates

Better tank mates for clown plecos

All clown pleco tank mates

Questions

Can siamese algae eaters live with clown plecos?

Yes. Siamese algae eaters and clown plecos make a good pair. Both are fine at 75–79°F. Plan on at least 30 gal.

What temperature suits both siamese algae eaters and clown plecos?

75–79 °F. Siamese algae eaters need 75–79 °F, clown plecos need 73–82 °F.

What size tank do siamese algae eaters and clown plecos need together?

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