Farlowella

Farlowella acus

Photo of aquarium fish Farlowella
Natural range
  • South America area
CatfishConservation status: Vulnerable VU

Family:Armored Catfishes (Loricariidae)

Other scientific names: Acestra acus, Farlowella scolopacina, Loricaria scolopacina

Farlowella (Farlowella acus) is a unique species of catfish belonging to the family Loricariidae, known as armored or suckermouth catfish. These fish are distinguished by their extremely original appearance, resembling an aquatic plant stem or a tree root. Such effective camouflage allows them to hide perfectly in their natural habitat. In a home aquarium, Farlowella adapts well to life in any group of fish, with the exception of aggressive species.

Required aquarium volume
140 L
Size in aquarium
18 cm
Temperature
22 – 26 °C
Temperament
Peaceful (regular)
Parameters
Temperature22 – 26 °C
Water pHSlightly acidic (6) – Slightly alkaline (8)
Water dHVery soft (1) – Medium hardness (10)
Water salinityno salt (freshwater)
Size in aquarium18 cm
Lifespan10 years
TemperamentPeaceful (regular)
Toward small fishnot a predator
Required aquarium volume140 L
Lightingmoderate (regular)
Substratecoarse sand / gravel / pebbles
Water flowweak
FeedingSinking (any)
CareSmall group (5–6 individuals)

Frequently asked questions

The essentials: size, tank volume, water parameters and care

How big does Farlowella get?

An adult reaches 18 cm in length. Plan the tank around the maximum size: the fish quickly outgrows a cramped setup.

What size aquarium does Farlowella need?

The minimum recommended volume is 140 L. A smaller tank speeds up nitrate build-up and raises stress levels.

What water parameters does Farlowella need?

Temperature 22–26 °C, pH 6–8, hardness 1–10 dGH. Stability matters more than exact values: sudden swings are harder on the fish than a small deviation from the ideal.

How long does Farlowella live?

Around 10 years when kept properly. Lifespan depends directly on tank volume, water quality and a varied diet.

Is Farlowella aggressive?

Temperament: peaceful (regular). Keep this in mind when choosing tank mates.

How many Farlowella should be kept together?

Recommended setup: small group (5–6 individuals). Ignoring this is a common cause of stress and disease.

What does Farlowella eat?

Diet type: sinking (any). Feed small portions that are finished within a couple of minutes — overfeeding does more harm than underfeeding.

What is the scientific name of Farlowella?

The scientific name of the species is Farlowella acus, family Armored Catfishes (Loricariidae). It also appears in the literature as: Acestra acus, Farlowella scolopacina, Loricaria scolopacina.

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