From Microcosm Aquarium Explorer
The Clown Pleco is a perfect species for those looking for a smaller loricariid-type catfish to help keep algal growth at bay. It has efficient, scraper-like teeth to rasp algae from wood and rocks and will fit nicely into most community aquariums.
Other common name(s):
Habitat: Prefers a tank with driftwood for browsing, as well as plenty of caves for hiding or spawning, such as rocks and inverted flowerpots. Live or artificial plants are not a necessity, but can be included as part of the decor. Provide a dark substrate of fine, rounded gravel.
Maximum length: 9 cm (4 in)
Minimum aquarium size: 114 L (30 gal)
Water: Freshwater 22 °C (72 °F) - 26 °C (79 °F)
General swimming level: Bottom and on substrate
Omnivore. The Clown Pleco does best on a herbivorous diet that includes any of the commercial vegetable-based dry, pelleted or sinking algae wafers designed specifically for catfishes, as well as fresh vegetable matter, such as well-rinsed Romaine lettuce, parboiled zucchini or shell-less peas. Feed first thing in the morning and just after the lights are turned off at night.
The Clown Pleco is a relatively peaceful community tank resident that can be kept with a variety of mid- to top-water swimming species, such as larger tetras.
Spawns in caves. Male guards/cares for eggs and young.
Although they may occasionally defend their territories against conspecifics and even other species, little or no harm is done.