Can Cardinal Tetra Live With Corydoras?

• Both are peaceful community fish
• Cardinal tetras prefer softer, more acidic water

Compatibility Score Breakdown

Minimum Tank Size

At least 20 gallons for this combination.

Setup Tips

• Keep both species in groups
• Use stable, clean water
• Choose corydoras that tolerate the planned temperature

Works Best If

• The tank is at least 20 gallons and fully cycled.
• Both species have hiding space and are introduced with close observation.
• Water temperature and pH stay inside the overlap shown in the score breakdown.

Main Risks

• Water parameter mismatch if water is too hard or alkaline

Avoid This Pairing If

• The tank is smaller than the recommended minimum.
• Either species is already showing stress, hiding, or fin damage.
• You cannot separate the fish quickly if chasing, nipping, or bullying starts.

Frequently Asked Questions