Can paradise fish live with dojo loaches?

Verdict
Yes

Yes. Paradise fish and dojo loaches get along in the same tank. Both are fine at 61–77°F. Plan on at least 55 gal.

Paradise fishParadise fish61–79°F · pH 6–8 Dojo loachDojo loach59–77°F · pH 6.5–8

Why it works

Water side by side

55°60°65°70°75°80°85°90°Both: 61–77°Paradise fish 61–79°Dojo loach 59–77°
The green band is the temperature range both can live in.
456789Both: 6.5–8Paradise fish 6–8Dojo loach 6.5–8
The green band is the pH both tolerate.

Size to scale

Paradise fish · 3.5 inDojo loach · 6 in0"1"2"3"4"5"6"
Adult length in an aquarium. A fish can swallow anything that fits in its mouth, roughly a third to half its own length for predators.

Care at a glance

Paradise fishDojo loach
Temperature61–79 °F59–77 °F
pH6–86.5–8
Adult size3.5 in6.0 in
Minimum tank20 gal55 gal
TemperamentSemi-aggressivePeaceful
Swims atTopBottom
GroupOne per tankGroups of 3+
DietOmnivoreOmnivore

Better tank mates for paradise fish

All paradise fish tank mates

Better tank mates for dojo loaches

All dojo loach tank mates

Questions

Can paradise fish live with dojo loaches?

Yes. Paradise fish and dojo loaches get along in the same tank. Both are fine at 61–77°F. Plan on at least 55 gal.

What temperature suits both paradise fish and dojo loaches?

61–77 °F. Paradise fish need 61–79 °F, dojo loaches need 59–77 °F.

What size tank do paradise fish and dojo loaches need together?

At least 55 gal, set by the dojo loach. Add space for each extra fish.