Pleco is a very hardy fish and the most common catfish used for getting rid of difficult algae in the aquarium.

They do miracles for controlling algae growth in the aquarium, and a tank with a good algae yield also helps to keep them healthy and long-lived.

Plecos make excellent community fish because they get on fine with and are peaceful with other tank mates. 

Catfish (or catfishes; order Siluriformes or Nematognathi) are a diverse group of ray-finned fish.

Named for their prominent barbels, which resemble a cat’s whiskers, catfish range in size and behavior from the three largest species, the Mekong giant catfish from Southeast Asia, the wels catfish of Eurasia and the Piraíba of South America