Can Molly Live With Tiger Barb?
Maybe, with caveats -- both species are active swimmers and may nip at each other, but a well-fed group in a planted tank can coexist.
Why
- Tiger barbs reach 3 inches and are notorious fin-nippers, especially in groups of fewer than 6.
- Mollies reach 4 to 5 inches and are active but not aggressive, so they may still get targeted by tiger barb energy.
- Both species tolerate temperatures from 74-79F and pH 7.0, giving a tight but workable overlap window.
- A 20-gallon with plants and decor breaks sight lines and reduces nipping target access for both species.
What could go wrong
Tiger barbs may nip at molly fins in a smaller group, and stressed mollies develop faded colors and clamped fins.
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 do well with other active species like danios or彩虹鱼; mollies do well with platies or swordtails.
Related compatibility questions
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