Family: Loricariidae
Twig catfish — a Loricariidae from South America, peaceful; most activity happens after dark. Reaches 6.8–10 cm; keep bottom stock light — they share one floor. 20–26 °C.
Farlowella acus is a Loricariidae from South America. In the wild it prefers warm freshwater streams and lakes; in the aquarium it stays peaceful. Plan on 6.8–10 cm of adult fish at 20–26 °C. In a community tank it pairs well with Mid-water schooling fish.
Intermediate difficulty. Peaceful; most activity happens after dark; keep bottom stock light — they share one floor.
Aim for 20–26 °C. Stable temperature matching the species origin; 20.0–26 °C typical for the family.
Full size is 6.8–10 cm. Minimum tank: 120 L, with open swimming space along its middle of the water column habits.
Omnivorous scavenger — sinking pellets, frozen and vegetable foods. Feed two small meals a day rather than one large one.
Yes, with care. Peaceful; most activity happens after dark — pair it with Mid-water schooling fish — Use the space catfish ignore and skip Fast surface feeders — Leave nothing for the bottom.
Its home waters are South America — warm freshwater streams and lakes, with still to gentle current.
Low escape risk, but a lid is cheap insurance.
Spawning rarely seen; presumed crevice egg-layer. Subtle external differences.