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Species profile

Cochliodon Plecostomus L310

Hypostomus cochliodon

Common names: Cochliodon Plecostomus L310, L310

Recognized speciesPlecostomus

Adult size

Up to 30 cm

Typical adult length 22.5–30 cm.

Up to 30 cm

Countries of origin

  • See all stock from Argentina
  • See all stock from Brazil
  • See all stock from Paraguay

Good fit for your tank?

Good fit for

  • An experienced keeper with a large driftwood aquarium
  • A setup with oversized filtration and regular waste removal
  • An aquarist interested in a specialised wood-eating Hypostomus

Think carefully if

  • You want a small or low-waste pleco
  • The aquarium lacks substantial wood
  • You expect predictable indoor breeding

Cochliodon Plecostomus L310 is a South American loricariid represented by L310. It requires stable oxygen-rich water, suitable caves, and deliberate species-appropriate feeding.

Appearance and Identification

A heavy-bodied rusty to brown Hypostomus with darker mottling or spotting and specialised spoon-shaped teeth. Its mouth is adapted for rasping submerged wood rather than functioning as a simple algae scraper.

Use the L-number identification L310 together with the current assignment Hypostomus cochliodon. Do not merge it with visually similar forms without matching collection locality and diagnostic features.

External sex differences are not dependable. Mature males may have stronger odontodes and a broader head, while females may become fuller, but venting is needed for confidence.

Tank Requirements

Suggested filter
About 1,200–1,500 litres an hour
Suggested heater
About 300–450 W for this tank
Minimum tank volume
300 litres
Minimum tank length
120 cm
Minimum group size
1
Recommended group size
1
Activity level
Moderate
Flow preference
Moderate
Planting preference
Lightly planted
Hiding places
Yes
Lid recommended
Yes
Jumping risk
Low

Provide a large aquarium with abundant driftwood, powerful filtration and open floor space. Wood-rich feeding produces substantial waste, and a strong adult can shift unsecured decor.

Behaviour and Tankmates

Usually calm toward free-swimming fish but increasingly territorial with other large bottom dwellers. It may control a preferred log or shaded resting area.

Can be kept singly. A pair or group requires several appropriately sized caves and enough floor area for every adult to feed without being trapped.

Mature males commonly defend caves and favoured feeding areas from similarly shaped loricariids.

Keep as the main large pleco unless the aquarium is exceptionally spacious. Robust peaceful tank mates are safer than aggressive cichlids or competing wood eaters.

Check tankmates for this species

Water Parameters

Temperature
22–29 °C
pH
6–8
GH
2–20
KH
1–10
TDS
50–350
Stability importance
Important

Maintain stable clean water with strong oxygenation. Warm water, protein-rich food, wood waste, and crowded hardscape can rapidly reduce oxygen and degrade water quality.

Parameter caveat
Acclimate slowly to temperature and conductivity changes. Keep ammonia and nitrite at zero, control nitrate, and inspect caves and rockwork for trapped waste.

Feeding

Diet types
Aufwuchs Grazer, Herbivore, Omnivore, Scavenger
Feeding frequency
Daily
Preferred foods
  • Natural aufwuchs and biofilmMaintain mature rocks and wood for continuous supplementary grazing.
  • Complete herbivore or algae waferUse a high-quality sinking staple with fibre.
  • Blanched leafy greens or courgetteOffer occasionally and remove leftovers.
  • Frozen daphnia or insect larvaeUse small portions as supplementary protein.

Driftwood is a central dietary resource and should be supplemented with fibre-rich sinking foods, vegetables and limited animal protein. It is not suitable for a predominantly carnivorous diet.

Feed after lights dim and distribute food near every occupied shelter. Confirm that subordinate fish eat and remove rich leftovers before they affect water quality.

Breeding

Breeding type
Cave Spawner, Egg Layer
Breeding difficulty
Difficult
Breeding temperature
25.5 °C
Breeding pH
7
Brood or egg count
Usually several dozen adhesive eggs, with clutch size depending on species and female size.
Incubation
7 days
Parental care
Paternal care
Baby foods
  • Mature biofilmProvides continuous grazing after fry leave the cave.
  • Fine powdered sinking foodFeed tiny portions close to shelter several times daily.
  • Newly hatched brine shrimpUse as supplementary protein once fry can take moving prey.

Reliable home-aquarium breeding is uncommon and poorly documented. Large cochliodon-type Hypostomus should be regarded as difficult breeding subjects rather than ordinary cave spawners.

Habitat and Origin

Geographic origin
Amazon Basin, Argentina, Brazil, Paraguay, South America
Natural habitat
Fast-Flowing Stream, Freshwater River, Freshwater Stream, Rocky Shoreline
Aquarium contexts
Freshwater Aquarium, Large Freshwater Aquarium
Audience level
Intermediate

Classification

Profile type
Recognized species
Genus
Hypostomus
Family
Loricariidae
Species group
Fish, Plecostomus
Previous scientific names
Hypostomus sp. (L310), Historic L-number designation retained for identification.

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