Select options L128 Blue Phantom Pleco (Hemiancistrus sp. L128) $24.99 – $69.99 The Blue Phantom Pleco originates in fast-moving, rocky areas of the Orinoco River in Colombia and Venezuela. With their dark body coloration and stunning iridescent blue spots, this pleco makes a colorful and unique addition to most medium aquariums. An omnivore, they will graze on algae but also accept a variety of sinking prepared foods. Blue Phantoms are sensitive to poor water quality so be sure to perform frequent water changes. They will generally be more outgoing and less shy in a small group.