L355 Bristlenose Plecostomus
Ancistrus sp. (L355)
- Care level
- Intermediate
- Minimum tank
- 75 litres
- Temperature
- 23–29 °C
Species profile
L354 Spectracanthicus
Spectracanthicus cf. zuanoni
Common names: L354 Spectracanthicus, L354
Undescribed speciesPlecostomus
Countries of origin
Good fit for your tank?
Good fit for
- An experienced keeper of warm-water cave plecos
- A species setup with strong filtration and several caves
- An aquarist prepared for targeted nocturnal feeding
Think carefully if
- Oxygenation or maintenance may be inconsistent
- Aggressive cave competitors already occupy the bottom
- You want a visible algae-grazing pleco
L354 Spectracanthicus is a South American loricariid represented by L354. It requires stable oxygen-rich water, suitable caves, and deliberate species-appropriate feeding.
Appearance and Identification
L354 is treated here as Spectracanthicus cf. zuanoni, a comparative identification rather than a confirmed species assignment. It has a dark body with contrasting pale spots across the body and fins.
Use the L-number identification L354 together with the current assignment Spectracanthicus cf. zuanoni. Do not merge it with visually similar forms without matching collection locality and diagnostic features. The L-number remains the principal stable identifier because the form is undescribed or not conclusively assigned.
Mature males usually develop a broader head and stronger cheek and pectoral odontodes. Females become fuller through the abdomen, while juveniles are difficult to sex reliably.
Tank Requirements
- Suggested filter
- About 360–450 litres an hour
- Suggested heater
- About 100–125 W for this tank
- Minimum tank volume
- 90 litres
- Minimum tank length
- 75 cm
- Minimum group size
- 1
- Recommended group size
- 3
- Activity level
- Moderate
- Flow preference
- High
- Planting preference
- Lightly planted
- Hiding places
- Yes
- Lid recommended
- Yes
- Jumping risk
- Low
Provide warm, highly oxygenated water, powerful filtration, rock cover and several tight caves. Protein-rich feeding requires careful removal of uneaten food and waste.
Behaviour and Tankmates
Mostly nocturnal and territorial around caves. It usually ignores peaceful midwater fish but may fight similar plecos over shelter.
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.
Use calm warm-water companions and give every bottom fish a separate refuge. Avoid crowding several adult males into one cave cluster.
Water Parameters
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.
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Manual aquarium siphon and gravel cleaner
A manual siphon for routine aquarium water changes and accessible waste removal. The seller lists a hose approximately 1.6 m long.
Control the flow and keep the intake clear of fish and delicate planting. Clean the areas appropriate for your substrate and layout rather than disturbing the entire planted bed.
Daraz NepalCheck availability on Daraz
Feeding
- Diet types
- Carnivore, Insectivore, Omnivore
- Feeding frequency
- Daily
- Preferred foods
- Quality carnivore sinking pelletUse a protein-rich sinking food near each shelter.
- Frozen brine shrimp, mysis, or insect larvaeOffer varied aquatic animal foods.
- Chopped mussel or prawnFeed clean small portions and remove remains promptly.
- Soft omnivore waferProvides fibre and plant matter alongside the protein-rich staple.
Feed a protein-oriented omnivorous diet with quality sinking carnivore foods, small crustacean or insect foods and some plant matter for variety.
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
- 27.5 °C
- Breeding pH
- 6.5
- Brood or egg count
- Usually several dozen adhesive eggs; dependable species-specific fecundity data are unavailable.
- 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.
Male-guarded cave spawning is expected and captive breeding may be possible, but form-specific details can be limited. Eggs and fry require clean, strongly oxygenated water.
Habitat and Origin
- Geographic origin
- Amazon Basin, Brazil, South America
- Natural habitat
- Fast-Flowing Stream, Freshwater River, Rocky Shoreline
- Aquarium contexts
- Breeding Tank, Freshwater Aquarium, High-Flow Aquarium, Species-Only Aquarium
- Audience level
- Advanced
Classification
- Profile type
- Undescribed species
- Genus
- Spectracanthicus
- Family
- Loricariidae
- Species group
- Fish, Plecostomus
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L357 Bristlenose Plecostomus
Ancistrus sp. (L357)
- Care level
- Intermediate
- Minimum tank
- 75 litres
- Temperature
- 23–29 °C
L359 Bristlenose Plecostomus
Ancistrus sp. (L359)
- Care level
- Intermediate
- Minimum tank
- 75 litres
- Temperature
- 23–29 °C
L360 Hypostomus Plecostomus
Hypostomus sp. (L360)
- Care level
- Intermediate
- Minimum tank
- 300 litres
- Temperature
- 22–29 °C