Can silver dollars live with glofish?

Verdict

Yes, with care

Yes, with care. Silver dollars and glofish 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 glofish.

Silver dollar75–82°F · pH 5–7

GloFish tetra72–80°F · pH 6–7.5

What to watch

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

What works

Both are fine at 75–80°F.
pH 6–7 suits both.

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

	Silver dollar	GloFish tetra
Temperature	75–82 °F	72–80 °F
pH	5–7	6–7.5
Adult size	6.0 in	2.5 in
Minimum tank	75 gal	15 gal
Temperament	Peaceful	Semi-aggressive
Swims at	Middle	Middle
Group	Groups of 5+	Groups of 6+
Diet	Herbivore	Omnivore

Better tank mates for silver dollars

All silver dollar tank mates

Better tank mates for glofish

All glofish tetra tank mates

Questions

Can silver dollars live with glofish?

Yes, with care. Silver dollars and glofish 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 glofish.

What temperature suits both silver dollars and glofish?

75–80 °F. Silver dollars need 75–82 °F, glofish need 72–80 °F.

What size tank do silver dollars and glofish need together?

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