Can a Goldfish (Fancy) Live With a Cardinal Tetra?
With caution — a goldfish (fancy) and cardinal tetra can work, but watch the details.
Maybe — with caution
Goldfish (Fancy)8.0" · 20g min · 65–75°F · Peaceful
Cardinal Tetra2.0" · 20g min · 73–81°F · Peaceful
Temperatures line up — both thrive around 73–75°F.
pH preferences overlap (7–7) — easy to keep both comfortable.
Big size gap — keep an eye on the small cardinal tetra around the much larger goldfish (fancy).
Plan on at least 20 gallons for the pair (the larger of their two minimums).
Plan the full tank with the stocking calculator →
Gear for a community tank
As an Amazon Associate we earn from qualifying purchases.
FAQ
Can a goldfish (fancy) and cardinal tetra live together?
With caution — a goldfish (fancy) and cardinal tetra can work, but watch the details. Minimum tank for the pair is about 20 gallons.