Skip to content

Search

Popular pages

How to catch Suckermouth catfish

Hypostomus plecostomus (Linnaeus, 1758)

About Suckermouth catfish fishing

The suckermouth catfish is an armored freshwater fish belonging to the family Loricariidae, easily recognized by the rows of bony scutes covering its elongated body and a specialized ventral mouth. Growing up to a maximum length of nearly twenty-five centimetres standard length, this benthic species features a flat belly and a sucker-like disc used to rasp algae, detritus, and small crustaceans from hard substrates. It inhabits quiet flowing tropical rivers, muddy swamps, and tide-influenced lower reaches, preferring warm waters between twenty-two and thirty degrees Celsius. While primarily valued for the aquarium trade as a bottom cleaner rather than as a food source, introduced populations have established themselves in various regions globally.

  • Difficulty

    Medium

  • Average size

    28 cm TL

  • Habitat

    Freshwater, Brackish

  • Also known as

    Janitor fish, Plecostomus, Sea hasar, Spotted pleco, Sucking catfish

Suckermouth catfish

Suckermouth

Ventral sucker mouth used for algae grazing and holding in swift currents.

Bony Scutes

Heavy interlocking dermal plates covering the body for armor protection.

Suckermouth catfish fishing facts

Characteristics

  • Typical size

    28 cm TL (max 25 cm SL )

  • Typical weight

    0.4 kg (max 0.2 kg )

  • Longevity

    8 years

  • Body shape

    Elongated

  • Vulnerability score

    43.2

How to catch Suckermouth catfish

Tips for catching Suckermouth catfish

Target this armored bottom dweller in slow flowing tropical rivers and shallow marginal swamps by presenting baits directly on the mud substrate where it grazes. Since this species feeds primarily on plant matter detritus and small benthic organisms use fine ledgering rigs or light feeder setups equipped with soft dough baits or small pellets. Keep your terminal tackle discreet and wait patiently near quiet muddy margins or structure where these catfish use their sucker-like mouths to forage along the bottom.

Other names for Suckermouth catfish

Local and alternate names anglers use for Suckermouth catfish.

  • Sucking catfish
  • Suckermouth catfish
  • Spotted pleco
  • Sea hasar
  • Plecostomus
  • Janitor fish

Best equipment to catch Suckermouth catfish

Compare fishing methods for Suckermouth catfish — sized kit for each technique.

Note: Typical fish is 0.4 kg Our algorithm will suggest the best equipment for you based on this weight.

Best lures and baits for Suckermouth catfish

Ranked lures and natural baits from every method, best first.

Where Suckermouth catfish spends the year — Non-migratory

Stays in the same waters year-round. Look for it on the same grounds rather than timing a run.

Where Suckermouth catfish spends the year — Non-migratory 1. Eggs: Laid on the home grounds. 2. Juveniles: Grow up close by. 3. Adults: Keep to a small home range. 4. Spawners: Spawn on the same grounds, with only short moves.
Same water all year

1 Eggs

Same water all year

Laid on the home grounds.

2 Juveniles

Same water all year

Grow up close by.

3 Adults

Same water all year

Keep to a small home range.

4 Spawners

Same water all year

Spawn on the same grounds, with only short moves.

Hover or tap a number to read each stage.

Diet and behavior of Suckermouth catfish

  • Diet

    Omnivore

  • Feeds by

    Mixed feeder

  • Main prey

    Detritus

Prey and predators of Suckermouth catfish

Prey is what Suckermouth catfish eats. Predators are the animals that eat it.

That is how it feeds, and how it is hunted.

Prey

What it eats

Where Suckermouth catfish lives

Lives on or just above the bottom. Work jigs, bait, and lures along the seabed.

Habitats
Freshwater, Brackish
Depth zone
Depth not recorded
Water column
Demersal
On or near the bed

Where this species lives