L201 Hypancistrus Plecostomus

L201 has a dark brown to black body covered with distinct pale round spots across the head, body and fins. Spot size and spacing vary, so provenance remains useful when separating it from other snowball-type Hypancistrus.

This profile is identified by L201 and the current assignment Hypancistrus sp. (L201). Do not merge it with a visually similar L-number without matching collection locality and diagnostic features. The L-number remains the primary stable identifier because the form has not been formally described.

Mature males develop broader heads and stronger odontodes on the cheeks, first pectoral rays and rear body. Females are fuller through the abdomen, but juveniles can be difficult to sex.

Use warm, clean and highly oxygenated water with strong filtration, shaded cover and several close-fitting caves. This small, shy pleco needs protected feeding areas and stable conditions.

Usually peaceful with midwater fish but territorial around caves. Adult males may quarrel, and females can be injured if breeding caves are poorly sized or the group is overcrowded.

Can be kept singly or in a managed breeding group if each adult has an appropriate cave and unobstructed feeding access.

Mature males defend caves and may trap or injure rivals when shelter is limited.

Choose calm companions and avoid fast, aggressive bottom feeders. Keep it separate from similar Hypancistrus if preserving the L201 line is important.

Maintain stable, clean, oxygen-rich freshwater. Strong filtration and gas exchange are essential because warm water, protein-rich feeding, and loricariid waste can reduce oxygen and impair water quality.

Feed a protein-oriented omnivorous diet with small crustacean and insect foods, quality sinking pellets and some plant matter. It is not an algae-cleaning species.

Feed after lights dim and place food near every occupied cave. Confirm that subordinate fish eat, and remove rich leftovers before they affect water quality.

Captive breeding is well established. The male guards adhesive eggs inside a close-fitting cave, and the fry require frequent suitable foods without allowing water quality to decline.