Can hillstream loaches live with dwarf neon rainbowfish?

Verdict
Yes, with care

Yes, with care. Hillstream loaches and dwarf neon rainbowfish can share a tank, but watch one thing. They only share 75°F. Keep the heater set there and steady.

Hillstream loachHillstream loach68–75°F · pH 6.5–7.5 Dwarf neon rainbowfishDwarf neon rainbowfish75–82°F · pH 6.5–7.5

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 75°Hillstream loach 68–75°Dwarf neon rainbowfish 75–82°
The green band is the temperature range both can live in.
456789Both: 6.5–7.5Hillstream loach 6.5–7.5Dwarf neon rainbowfish 6.5–7.5
The green band is the pH both tolerate.

Size to scale

Hillstream loach · 2.5 inDwarf neon rainbowfish · 2.5 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

Hillstream loachDwarf neon rainbowfish
Temperature68–75 °F75–82 °F
pH6.5–7.56.5–7.5
Adult size2.5 in2.5 in
Minimum tank20 gal20 gal
TemperamentPeacefulPeaceful
Swims atBottomMiddle
GroupGroups of 3+Groups of 6+
DietHerbivoreOmnivore

Better tank mates for hillstream loaches

All hillstream loach tank mates

Better tank mates for dwarf neon rainbowfish

All dwarf neon rainbowfish tank mates

Questions

Can hillstream loaches live with dwarf neon rainbowfish?

Yes, with care. Hillstream loaches and dwarf neon rainbowfish can share a tank, but watch one thing. They only share 75°F. Keep the heater set there and steady.

What temperature suits both hillstream loaches and dwarf neon rainbowfish?

75–75 °F. Hillstream loaches need 68–75 °F, dwarf neon rainbowfish need 75–82 °F.

What size tank do hillstream loaches and dwarf neon rainbowfish need together?

At least 20 gal, set by the hillstream loach. Add space for each extra fish.