Dwarf Petricola

Geographic Origin and Biotope: Endemic to Lake Tanganyika. Inhabits rocky littoral zones, sneaking into submerged crevices and clefts dominated by large cichlids.

Taxonomy and Morphology: Dwarf Petricola (Synodontis lucipinnis). Often mistakenly sold as S. petricola. It is the "dwarf" version (10 cm / 4 inches against the 15 cm / 6 inches of the petricola). It features immaculate white barbels (not black) and light patches (little windows) at the base of the dark fins.

Social Behavior: Hyperactive and social. Must strictly live in groups of at least 5-6 specimens. Very bold, swims in the open exploring the bottom and loves to position itself vertically (or upside down) resting under rocky overhangs.

Coloration and Sexual Dimorphism: Beige/light copper background covered with circular black spots all over the body. The fins are striped or dotted, with chalk white margins. Females visibly more swollen and massive when viewed from above.

Aquarium Setup: Tanganyika Aquarium (80-100 cm / 32-40 inches). Fine sand to protect the long barbels. Mandatory the presence of stratified rocks stacked to form an intricate network of tunnels and dark caves, their primary refuge.

Diet and Feeding: Micro-predator and omnivorous scavenger. Eats any leftovers on the bottom (bloodworms, brine shrimp, sinking granules). They are ruthless egg eaters in nature, cleaning out the nests of distracted cichlids.

Water Quality: Hard and alkaline water (pH 8.0-8.5). Tanganyika waters are among the hardest and purest in the world; filters must be excellent to keep nitrates at zero. They suffer atrociously in acidic and soft waters.

Compatibility and Tankmates: Excellent with Tanganyika and Malawi Cichlids. Unlike S. multipunctatus (the brood parasite), the lucipinnis does not entrust its eggs in the mouths of cichlids. It will eat cichlid fry (if free-swimming), but is tolerated by adults.

Aquarium Reproduction: Hidden egg-scatterers. They reproduce by slipping into the darkest rocky crevices, throwing microscopic eggs by the hundreds among the pebbles (terracotta pots covered with glass marbles are often used in breeding to save the eggs from cannibalism).

Risks and Diseases: Death by Copper Intoxication. Like many catfish without bony scales (normal scales), they absorb medications very quickly. Ich treatments based on copper (Malachite Green, Formalin) often kill them or irreversibly burn their "antennas".