Can bettas live with assassin snails?

Verdict

Yes, with care

Yes, with care. Bettas and assassin snails can share a tank, but watch one thing. Bettas sometimes pick at snail feelers. Most snails cope by staying shut for a while.

Betta76–82°F · pH 6.5–7.5

Assassin snail75–80°F · pH 7–8

What to watch

Watch outBettas sometimes pick at snail feelers. Most snails cope by staying shut for a while.

What works

Both are fine at 76–80°F.
pH 7–7.5 suits both.
They use different parts of the tank: bettas the top, assassin snails the bottom.

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	Assassin snail
Temperature	76–82 °F	75–80 °F
pH	6.5–7.5	7–8
Adult size	2.5 in	1.0 in
Minimum tank	5 gal	5 gal
Temperament	Semi-aggressive	Peaceful
Swims at	Top	Bottom
Group	One per tank	Alone or in pairs
Diet	Carnivore	Carnivore

Better tank mates for bettas

All betta tank mates

Better tank mates for assassin snails

All assassin snail tank mates

Questions

Can bettas live with assassin snails?

Yes, with care. Bettas and assassin snails can share a tank, but watch one thing. Bettas sometimes pick at snail feelers. Most snails cope by staying shut for a while.

What temperature suits both bettas and assassin snails?

76–80 °F. Bettas need 76–82 °F, assassin snails need 75–80 °F.

What size tank do bettas and assassin snails need together?

At least 5 gal, set by the betta. Add space for each extra fish.