Furry Diary

Not furry, but we like them anyway.

Twig Catfish

Farlowella spp.

Also called Farlowella, Mailed catfish

SpeciesShort profile

From South America: the Amazon, Orinoco and Parana river systems and coastal rivers of the Guiana Shield.1

A friendly guide, not veterinary advice. For anything about your pet's health, ask your vet.

At a glance the quick version

Length15 cm2
Lifespan15 years2
Sizemedium

Farlowella vittata, the most commonly kept species, reaches 15 cm standard length.

Farlowella vittata is believed to live up to about 15 years.

Remarkable twig-like camouflage
Very peaceful
Diligent algae grazer
12

Looks how to spot one

Bony-plated suckermouth catfish

An extremely thin, elongated catfish that looks like a stick of wood, with a long pointed snout. Its brown body carries two dark stripes running from the snout tip over the eyes to the tail.12

ColoursBrownTwo dark lengthwise stripes12

Personality what they are like

Very peaceful and retiring. Males can stake out a spot but rarely bother anyone.2

Daily activity how busy a day looks

A slow grazer that clings to plant leaves, wood, rocks and glass for long periods.2

Grooming and care the hands-on bits

For F. vittata Seriously Fish lists 24-27 C, pH 6.0-7.0 and 3-10 dGH. It suits a calm, mature tank with established algae growth, gentle companions and steady water quality.2

Home where they are happiest

Minimum around 90 x 30 x 30 cm (about 81 litres) with wood, plants and surfaces that grow algae.2

Food basics what goes in the bowl

Mainly vegetarian: diatoms and green algae, plus fresh vegetables such as cucumber, kale and blanched spinach and algae wafers or spirulina tablets.21

Company who they like around

Peaceful with small characins, danios and other gentle loricariids; best kept away from boisterous fish.2

The story where it all began

The genus is named after William Gilson Farlow, a Harvard botanist known for studying algae, the favourite food of these fish. Only a couple of its roughly 30 species are regularly exported for aquariums.12

Fun facts for the dinner table

  1. 1

    Its genus honours a botanist who studied algae, which is fitting for an algae eater.1

  2. 2

    Females usually lay eggs on a vertical surface, often the aquarium glass.2

  3. 3

    The male stays with the eggs and fans them until they hatch in about 6-10 days.2

  4. 4

    It is so thin that it really does pass for a twig among branches and roots.1

Recognised by the official bits

Taxonomy
Genus Farlowella, family Loricariidae; about 33 valid species, sister group to Sturisoma1

The care rhythm Furry Diary remembers it for you

A typical home-care rhythm for a Twig Catfish. It is our own starting plan, not a vet's advice, and you can change every line in the app.

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Where this comes from

Every breed page shows where each fact comes from. If we got something wrong, sorry, we are pet people, not a science magazine. Tell us at support@furrydiary.app and we will fix it.

  1. Wikipedia: Farlowella en.wikipedia.orgused for distribution, species count, description, etymology
  2. Seriously Fish: Farlowella vittata seriouslyfish.comused for size, lifespan, water parameters, tank size, diet, temperament, breeding

Checked 2026-09-30. Text is written in our own words from these sources.