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Snowball Pleco

Hypancistrus inspector

Also called L102

SpeciesShort profile

From Upper Rio Negro in Amazonas, Brazil, and parts of the Casiquiare and upper Orinoco drainages in Venezuela and Colombia12

At a glance the quick version

Length12.6 to 16 cm12
Sizemedium
Bold 'snowball' spots on a dark body
Peaceful nature
Breeds in caves with the male caring for eggs
1

Looks how to spot one

Armoured suckermouth catfish

A bony-plated pleco with a dark body sprinkled with large white to yellow spots, smaller spots on the head, and spots that line up into bands on the upper tail in adults. Males are slimmer, carry more odontodes on the pectoral fins and cheeks and often show a reddish tone; females look stockier from above.1

Coloursbrown to black basewhite to yellow spots1

Personality what they are like

A peaceful pleco that keeps to the bottom and rarely bothers other fish.1

Daily activity how busy a day looks

Prefers clean, well-oxygenated water with steady movement.1

Grooming and care the hands-on bits

Keep water at 22 to 30 C, pH 5.0 to 7.5 and hardness 1 to 15 dGH. Very clean water matters: plan weekly changes of 30 to 50 percent and good oxygenation.1

Home where they are happiest

Seriously Fish suggests a base of at least 120 x 45 cm (about 243 litres), with caves, rocks and some wood.1

Food basics what goes in the bowl

An omnivore with a liking for small invertebrates. Offer sinking dried foods, frozen Daphnia, bloodworm and other larvae, shrimp, plus occasional fruit or parboiled potato. Gel-based homemade foods work well.1

Company who they like around

Gets along with peaceful tankmates. Avoid keeping it with other Hypancistrus species so they do not cross-breed.1

The story where it all began

Armbruster described the species in 2002. It is closely related to Hypancistrus contradens and is known in the aquarium hobby by its trade code L102.12

Fun facts for the dinner table

  1. 1

    It is a cave spawner, and the male looks after the eggs.1

  2. 2

    Mature males often take on a reddish tinge.1

  3. 3

    It is easiest to confuse with Hypancistrus contradens, but its dorsal fin does not reach the adipose fin spine.1

Recognised by the official bits

Taxonomy
Described by Armbruster in 20022
IUCN Red List
Least Concern2
Aquarium trade codes
L1021

The care rhythm a typical week and year

A typical home-care rhythm for a Snowball Pleco. A starting point, not a vet's advice.

Owner questions the things everyone asks

How often should I feed my Snowball Pleco?

Feed your Snowball Pleco small amounts once or twice daily. Furry Diary's starting plan suggests feeding every day. This peaceful bottom-dweller enjoys regular meals.1 Pet Wiki plan

What does a Snowball Pleco eat, and what should it never eat?

It eats sinking dried foods, frozen Daphnia, bloodworm, shrimp, and occasional fruit or parboiled potato. Gel-based homemade foods also work well. What it should never eat is not specified here, so ask your vet or a good breeder for a safe list.1

How much space does a Snowball Pleco need?

Seriously Fish recommends a base of at least 120 x 45 cm, which is about 243 litres. Provide caves, rocks, and some wood for this bottom-loving fish.1

What temperature, light or water does a Snowball Pleco need?

Keep water at 22 to 30°C, pH 5.0 to 7.5, and hardness 1 to 15 dGH. Clean, well-oxygenated water with steady movement is important. Light needs vary, so ask your exotic-pet vet or breeder for guidance.1

How often should I clean a Snowball Pleco's home?

Furry Diary's plan suggests weekly water changes of about 25% (facts say 30-50%), weekly glass cleaning, and monthly filter rinsing in old tank water. Regular cleaning keeps this sensitive fish healthy.1 Pet Wiki plan

Can a Snowball Pleco live with others?

Yes, it gets along with peaceful tankmates. Avoid keeping it with other Hypancistrus species to prevent cross-breeding. It's a peaceful pleco that rarely bothers other fish.1

How long does a Snowball Pleco live?

Lifespan is not given in the information we have. It varies by care, so ask your vet or a good breeder for typical expectations.

Can I handle a Snowball Pleco?

Handling is not covered in the provided facts. As a general rule, fish are best left in water; ask your exotic-pet vet or breeder for safe handling advice.

Written from the sources on this page, a few checked guides (VCA, ASPCA, RSPCA) and Pet Wiki's own starting care plan. A friendly guide, not a vet's advice.

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Where this comes from

Every fact on this page has a numbered source. Spotted an error? support@petwiki.app.

  1. Hypancistrus inspector (L102) - Seriously Fish seriouslyfish.comused for names, origin, size, care, diet, behaviour, colours
  2. Hypancistrus inspector - Wikipedia en.wikipedia.orgused for origin, size, taxonomy, IUCN

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