Can Cherry Barb Live With Harlequin Rasbora?
Yes, cherry barbs and harlequin rasboras share a tank well in 15 gallons or larger since both are peaceful mid-water schooling fish with identical care requirements.
Why
- Cherry barbs grow to 2 inches and harlequin rasboras grow to 1.5-2 inches, so neither can fit the other in their mouth.
- Both species tolerate temperatures of 73-81°F without stress.
- Both species thrive in pH 6.0-7.5, which gives a wide overlap for shared water.
- Cherry barbs and harlequin rasboras are both peaceful and schooling, so they coexist without aggression.
- Both species prefer planted tanks with moderate lighting, making them ideal tankmates.
What could go wrong
Both species are peaceful, so the main risk is overcrowding in small tanks. Keep at least 6 of each species and do not exceed the bioload for your tank size.
Gear for a shared tank
Sized for the 15 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 15 gallon minimum.
Eheim Jager 150W Thermostat Heater
Holds a steady temperature inside the 73-81°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.
Related compatibility questions
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