Can bristlenose plecos live with rainbow sharks?

Verdict

Yes, with care

Yes, with care. Bristlenose plecos and rainbow sharks can share a tank, but watch one thing. Rainbow sharks chase other bottom fish out of their patch.

Bristlenose pleco73–81°F · pH 6.5–7.5

Rainbow shark72–80°F · pH 6.5–7.5

What to watch

Watch outRainbow sharks chase other bottom fish out of their patch.

What works

Both are fine at 73–80°F.
pH 6.5–7.5 suits both.

Water side by side

The green band is the temperature range both can live in.

The green band is the pH both tolerate.

Size to scale

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

	Bristlenose pleco	Rainbow shark
Temperature	73–81 °F	72–80 °F
pH	6.5–7.5	6.5–7.5
Adult size	5.0 in	6.0 in
Minimum tank	30 gal	55 gal
Temperament	Peaceful	Semi-aggressive
Swims at	Bottom	Bottom
Group	Alone or in pairs	One per tank
Diet	Herbivore	Omnivore

Better tank mates for bristlenose plecos

All bristlenose pleco tank mates

Better tank mates for rainbow sharks

All rainbow shark tank mates

Questions

Can bristlenose plecos live with rainbow sharks?

Yes, with care. Bristlenose plecos and rainbow sharks can share a tank, but watch one thing. Rainbow sharks chase other bottom fish out of their patch.

What temperature suits both bristlenose plecos and rainbow sharks?

73–80 °F. Bristlenose plecos need 73–81 °F, rainbow sharks need 72–80 °F.

What size tank do bristlenose plecos and rainbow sharks need together?

At least 55 gal, set by the rainbow shark. Add space for each extra fish.