Can a Tiger Barb Live With a Cardinal Tetra?
With caution — a tiger barb and cardinal tetra can work, but watch the details.
Maybe — with caution
Tiger Barb3.0" · 20g min · 68–79°F · Semi-aggressive
Cardinal Tetra2.0" · 20g min · 73–81°F · Peaceful
Temperatures line up — both thrive around 73–79°F.
pH preferences overlap (6–7) — easy to keep both comfortable.
The tiger barb can nip or bully a small peaceful cardinal tetra — add cover and space.
Both are shoaling species — keep each in its own group of 6+ for calm, confident fish.
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
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FAQ
Can a tiger barb and cardinal tetra live together?
With caution — a tiger barb and cardinal tetra can work, but watch the details. Minimum tank for the pair is about 20 gallons.