Can clown loaches live with flowerhorns?

Verdict
No

No. Clown loaches and flowerhorns should not share a tank. Flowerhorns are aggressive and will bully peaceful clown loaches.

Clown loachClown loach77–86°F · pH 6–7.5 FlowerhornFlowerhorn80–89°F · pH 7–8

What to watch

What works

Water side by side

55°60°65°70°75°80°85°90°Both: 80–86°Clown loach 77–86°Flowerhorn 80–89°
The green band is the temperature range both can live in.
456789Both: 7–7.5Clown loach 6–7.5Flowerhorn 7–8
The green band is the pH both tolerate.

Size to scale

Clown loach · 8 inFlowerhorn · 12 in0"2"4"6"8"10"12"
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

Clown loachFlowerhorn
Temperature77–86 °F80–89 °F
pH6–7.57–8
Adult size8.0 in12.0 in
Minimum tank75 gal75 gal
TemperamentPeacefulAggressive
Swims atBottomMiddle
GroupGroups of 5+One per tank
DietOmnivoreCarnivore

Better tank mates for clown loaches

All clown loach tank mates

Questions

Can clown loaches live with flowerhorns?

No. Clown loaches and flowerhorns should not share a tank. Flowerhorns are aggressive and will bully peaceful clown loaches.

What temperature suits both clown loaches and flowerhorns?

80–86 °F. Clown loaches need 77–86 °F, flowerhorns need 80–89 °F.

What size tank do clown loaches and flowerhorns need together?

At least 75 gal, set by the clown loach. Add space for each extra fish.