Can Kuhli Loach Live With Pygmy Corydoras?
Yes, kuhli loaches and pygmy corydoras share a tank well in 15 gallons or larger since both are peaceful bottom-dwelling schooling fish with overlapping care requirements.
Why
- Kuhli loaches grow to 3-4 inches and pygmy corydoras grow to 1 inch, so neither can fit the other in their mouth.
- Both species are peaceful bottom-dwellers that sift through substrate and rest together without conflict.
- Both species tolerate temperatures of 73-79°F without stress.
- Both species thrive in similar pH ranges, with kuhlis preferring 5.5-7.0 and pygmies preferring 6.4-7.4.
- Both species are nocturnal or crepuscular and will be active at different times of day, so they do not compete for space.
What could go wrong
Kuhli loaches need sand substrate to burrow safely. If kept on gravel, kuhlis risk injury and the two species will not coexist as happily.
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 73-79°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.
Related compatibility questions
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