Can rams live with siamese algae eaters?

Verdict
No

No. Rams and siamese algae eaters should not share a tank. No shared temperature. Rams need 80–86°F, siamese algae eaters need 75–79°F.

German blue ramGerman blue ram80–86°F · pH 5–7 Siamese algae eaterSiamese algae eater75–79°F · pH 6.5–7.5

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°German blue ram 80–86°Siamese algae eater 75–79°
The ranges do not meet, so one of them would always be too warm or too cold.
456789Both: 6.5–7German blue ram 5–7Siamese algae eater 6.5–7.5
The green band is the pH both tolerate.

Size to scale

German blue ram · 2.5 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

German blue ramSiamese algae eater
Temperature80–86 °F75–79 °F
pH5–76.5–7.5
Adult size2.5 in6.0 in
Minimum tank20 gal30 gal
TemperamentPeacefulPeaceful
Swims atBottomBottom
GroupAlone or in pairsAlone or in pairs
DietOmnivoreHerbivore

Better tank mates for rams

All german blue ram tank mates

Better tank mates for siamese algae eaters

All siamese algae eater tank mates

Questions

Can rams live with siamese algae eaters?

No. Rams and siamese algae eaters should not share a tank. No shared temperature. Rams need 80–86°F, siamese algae eaters need 75–79°F.

What temperature suits both rams and siamese algae eaters?

None. Rams need 80–86 °F and siamese algae eaters need 75–79 °F, so the ranges do not meet.

What size tank do rams and siamese algae eaters need together?

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