Can bettas live with silver dollars?

Verdict

Yes, with care

Yes, with care. Bettas 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 bettas.

Betta76–82°F · pH 6.5–7.5

Silver dollar75–82°F · pH 5–7

What to watch

Watch outSilver dollars grow to 6 inches and need 75 gallons, far more than a tank set up for bettas.

What works

Both are fine at 76–82°F.
pH 6.5–7 suits both.
They use different parts of the tank: bettas the top, silver dollars the mid.

Water side by side

The green band is the temperature range both can live in.

The green band is the pH both tolerate.

Size to scale

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

	Betta	Silver dollar
Temperature	76–82 °F	75–82 °F
pH	6.5–7.5	5–7
Adult size	2.5 in	6.0 in
Minimum tank	5 gal	75 gal
Temperament	Semi-aggressive	Peaceful
Swims at	Top	Middle
Group	One per tank	Groups of 5+
Diet	Carnivore	Herbivore

Better tank mates for bettas

All betta tank mates

Better tank mates for silver dollars

All silver dollar tank mates

Questions

Can bettas live with silver dollars?

Yes, with care. Bettas 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 bettas.

What temperature suits both bettas and silver dollars?

76–82 °F. Bettas need 76–82 °F, silver dollars need 75–82 °F.

What size tank do bettas and silver dollars need together?

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