AquaStocker

Can a Neon Tetra Live With a Goldfish (Fancy)?

With caution — a neon tetra and goldfish (fancy) can work, but watch the details.

Updated June 2026
By the AquaStocker team · How we source our data
Maybe — with caution
Neon TetraNeon Tetra
1.5" · 10g min · 70–81°F · Peaceful
+
Goldfish (Fancy)Goldfish (Fancy)
8.0" · 20g min · 65–75°F · Peaceful
Temperatures line up — both thrive around 70–75°F.
pH preferences overlap (7–7) — easy to keep both comfortable.
Big size gap — keep an eye on the small neon tetra around the much larger goldfish (fancy).
Plan on at least 20 gallons for the pair (the larger of their two minimums).

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Aquarium water test kitwatch your parametersAquarium filtermore filtration = headroomAquarium heaterstable temperature20 gallon aquariumroom for both

FAQ

Can a neon tetra and goldfish (fancy) live together?
With caution — a neon tetra and goldfish (fancy) can work, but watch the details. Minimum tank for the pair is about 20 gallons.

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