Twig Catfish (Farlowella)

The Twig Catfish (Farlowella), scientifically known as Farlowella acus, belongs to the Catfish family group. Adults reach a maximum size of approximately 16 cm and have a eel body shape with a slow growth rate. Classified as peaceful, this species primarily occupies the mid-level and bottom zones of the aquarium and produces a medium level of biological waste.

To thrive, the Twig Catfish (Farlowella) requires a freshwater only aquarium with a minimum volume of 110 litres and a tank length of at least 80 cm. Water temperature should be maintained between 23°C and 26°C, with a pH range of 6–7.2 and a general hardness of 3–10 dGH. A moderate water flow is preferred.

The Twig Catfish (Farlowella) is a rewarding species to keep, provided its core environmental needs are met. This species is available in 3 varieties: Standard / Unsexed, Male, and Female. Each may differ slightly in size, temperament, or care needs, so it is worth checking the specific requirements of the variety you plan to keep.

When setting up an aquarium for the Twig Catfish (Farlowella), a moderate water flow best suits their natural preferences. Because this species occupies the mid-level and bottom zones, the aquarium layout should prioritise open swimming space in the centre of the tank for free movement and sufficient floor space with hiding spots among rocks, wood, or dense planting. Useful additions include driftwood, which can serve as both a hiding place and a dietary supplement and an established tank with natural algae growth, as they depend on it as a primary food source.

Classified as peaceful, the Twig Catfish (Farlowella) is adaptable and can be kept singly or in a small group, offering flexibility when planning a community tank. When choosing tankmates, boisterous or fast-moving tankmates may cause this species undue stress. Selecting tankmates that favour different water layers from the mid-level and bottom zones can help reduce competition and territorial overlap.

Twig Catfish (Farlowella) is best for a fishkeeper who wants a species that can settle into a calmer community setup and can provide someone who understands its individual space requirements. It makes the most sense for a hobbyist who will actually build around its needs, especially driftwood.

The most common mistake is buying Twig Catfish (Farlowella) for looks first and only later discovering how its adult size, behavior, or bioload changes the whole tank plan. Another frequent problem is forcing it into an over-busy community when it would do better with more room or more deliberate tankmate choices.