Can Dojo Loach Live With Goldfish?
Yes, dojo loaches and goldfish share a tank well in 40 gallons or larger because both are cool-water fish that prefer the same temperature range.
Why
- Dojo loaches reach 10-12 inches. Goldfish grow to 6-10 inches depending on variety. Neither is small enough to be eaten.
- Dojo loaches are active bottom dwellers that sift substrate. Goldfish are surface to mid-level feeders.
- Both tolerate 60-72F, which is below what most tropical fish need.
- Dojo loaches are peaceful and ignore goldfish. Goldfish are omnivores that eat pellets and vegetables, not other fish.
What could go wrong
Dojo loaches are sensitive to warm water. If the tank creeps above 75F in summer, the loach becomes stressed while the goldfish seems fine.
Gear for a shared tank
Sized for the 40 gallon minimum this pairing needs. Affiliate links — we earn a small commission if you buy through them.
AquaClear 70 Power Filter
Oversized filtration is what lets you stock two species together without water quality crashing. Rated for a tank slightly larger than the 40 gallon minimum.
Eheim Jager 200W Thermostat Heater
Holds a steady temperature inside the 60-72°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
Keep reading
Planning a community tank?
Check compatibility for any two freshwater species before you buy. Stop guessing, stop returning fish.
Open the compatibility chart →