Can Cardinal Tetra Live With Tiger Barb?
Maybe, with caveats. Cardinal tetras and tiger barbs share water parameters, but tiger barbs are nippy and may stress small tetras.
Why
- Cardinal tetras reach 2 inches and are slow, delicate swimmers.
- Tiger barbs grow to 3 inches and are notoriously nippy, especially in groups under 6.
- Temperature overlap of 74-79F suits both species without compromise.
- pH range of 6-7 works for both, though cardinal tetras prefer slightly softer water.
- Tiger barbs are active mid-tank swimmers that may outcompete tetras for space.
What could go wrong
Tiger barbs may nip the cardinal tetras' flowing fins and stress the school until colors fade.
Gear for a shared tank
Sized for the 20 gallon minimum this pairing needs. Affiliate links — we earn a small commission if you buy through them.
AquaClear 30 Power Filter
Oversized filtration is what lets you stock two species together without water quality crashing. Rated for a tank slightly larger than the 20 gallon minimum.
Eheim Jager 150W Thermostat Heater
Holds a steady temperature inside the 74-79°F window both species need.
API Freshwater Master Test Kit
Keep ammonia, nitrite, and nitrate in check. Two-species tanks have more bioload and less margin for error than single-species setups.
Better pairings to consider
Tiger barbs pair better with other barbs or larger, fast-swimming species; cardinal tetras do well with corydoras or rasboras.
Related compatibility questions
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