Can black skirt tetras live with silver dollars?

Verdict
Yes, with care

Yes, with care. Black skirt tetras and silver dollars can share a tank, but watch one thing. Silver dollars grow to 6 inches and need 75 gallons, far more than a tank set up for black skirt tetras.

Black skirt tetraBlack skirt tetra70–80°F · pH 6–7.5 Silver dollarSilver dollar75–82°F · pH 5–7

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 75–80°Black skirt tetra 70–80°Silver dollar 75–82°
The green band is the temperature range both can live in.
456789Both: 6–7Black skirt tetra 6–7.5Silver dollar 5–7
The green band is the pH both tolerate.

Size to scale

Black skirt tetra · 2.5 inSilver dollar · 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

Black skirt tetraSilver dollar
Temperature70–80 °F75–82 °F
pH6–7.55–7
Adult size2.5 in6.0 in
Minimum tank15 gal75 gal
TemperamentSemi-aggressivePeaceful
Swims atMiddleMiddle
GroupGroups of 6+Groups of 5+
DietOmnivoreHerbivore

Better tank mates for black skirt tetras

All black skirt tetra tank mates

Better tank mates for silver dollars

All silver dollar tank mates

Questions

Can black skirt tetras live with silver dollars?

Yes, with care. Black skirt tetras and silver dollars can share a tank, but watch one thing. Silver dollars grow to 6 inches and need 75 gallons, far more than a tank set up for black skirt tetras.

What temperature suits both black skirt tetras and silver dollars?

75–80 °F. Black skirt tetras need 70–80 °F, silver dollars need 75–82 °F.

What size tank do black skirt tetras and silver dollars need together?

At least 75 gal, set by the silver dollar. Add space for each extra fish.