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Plecos are perhaps one of the most misunderstood fish in the aquarium hobby. The great diversity in species is the main cause, along with misinformation distributed by pet stores.

Some plecos easily reach 15 inches in length and can disturb your tank’s ecosystem if they don’t receive the care they deserve.

On the other hand, there are a lot of peaceful and small pleco types that make perfect tank mates for numerous fish. Many pleco species make for amazing, flexible community fish that are fun to watch.

Bristlenose plecos are perhaps the best example of this, and they’re our main focus here at Aquarium Genius. On this page, you can find care guides on providing your pleco fish with the best possible care.