Can siamese algae eaters live with severums?

Verdict
Yes

Yes, siamese algae eaters and severums 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 SeverumSeverum74–84°F · pH 6–7

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–79°Siamese algae eater 75–79°Severum 74–84°
The green band is the temperature range both can live in.
456789Both: 6.5–7Siamese algae eater 6.5–7.5Severum 6–7
The green band is the pH both tolerate.

Size to scale

Siamese algae eater · 6 inSeverum · 8 in0"1"2"3"4"5"6"7"8"
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 eaterSeverum
Temperature75–79 °F74–84 °F
pH6.5–7.56–7
Adult size6.0 in8.0 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 severums

All severum tank mates

Questions

Can siamese algae eaters live with severums?

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

What temperature suits both siamese algae eaters and severums?

75–79 °F. Siamese algae eaters need 75–79 °F, severums need 74–84 °F.

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

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