L183 Starlight Bristlenose Pleco (Ancistrus dolichopterus)
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Brand Tropical Fish Co.
Title L183 Starlight Bristlenose Pleco (Ancistrus dolichopterus)

L183 Starlight Bristlenose Pleco (Ancistrus dolichopterus)

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$49.99
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L183 Starlight Bristlenose Pleco (Ancistrus dolichopterus)

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L183 Starlight Bristlenose Pleco (Ancistrus dolichopterus)

L183 Starlight Bristlenose Pleco (Ancistrus dolichopterus)

$49.99

Product information

 

L183 Starlight Pleco Care Guide

Also known as: Starlight Bristlenose Pleco, White Seam Bristlenose, Super Starlight

 

 

Origin and Habitat

L183 is a bristlenose pleco from Brazil’s Amazon region, frequently associated with the Rio Negro drainage. The Rio Negro is renowned for its tannin-stained blackwater, flooded forest tributaries, driftwood, leaf litter, shaded structure, steady current, and abundant grazing surfaces.

 

 

Biotope Setup

A Rio Negro-inspired aquarium is simple yet stunning: dark sand substrate, tangled driftwood, leaf litter, and soft/diffused lighting. Focus on wood, botanicals, and shade rather than dense planting.

 

 

Compatible Fish – Common & Easy to Source

  • Cardinal Tetra (Paracheirodon axelrodi)
  • Rummy Nose Tetra (Hemigrammus bleheri)
  • Lemon Tetra (Hyphessobrycon pulchripinnis)
  • Warm-tolerant Corydoras species (in larger setups)
  • Peaceful dwarf cichlids (e.g., Apistogramma species)

 

 

Compatible Fish – Rarer & More Authentic Rio Negro

  • Pencilfish (Nannostomus species)
  • Green Neon Tetra (Paracheirodon simulans)
  • Wild-type Angelfish (in larger blackwater-themed systems)

 

 

Biotope Plants – Common & Aquarium-Friendly

  • Floating plants for shade (Salvinia, Amazon Frogbit)
  • Echinodorus sword plants
  • Tiger Lotus (Nymphaea species) for dramatic leaves & shadows

 

 

Biotope Plants – Rarer & Specialty Choices

  • Tonina species & other soft-water stem plants (advanced setups)
  • Utricularia species (high-skill blackwater planted tanks)

 

 

Temperature & Water Conditions

  • Temperature: 75–82°F (24–28°C) – stable tropical range
  • pH: Slightly acidic to neutral; stability > exact value
  • Filtration & Oxygen: Excellent filtration, high oxygenation, low nitrates
Tropical Fish Co. Advice: Do not chase pH unless optimizing for breeding/hatching. Prioritize stability, clean water, and low nitrates for everyday success.

 

 

Appearance & Size

Iconic “night sky” look: deep black body covered in bright white spots, often with striking white seams on the fins. Commonly kept to ~4 inches (10 cm) in aquariums; larger sizes reported in the wild.

 

 

Male vs. Female

Males develop prominent bristlenose tentacles on the snout and head as they mature. Females have fewer/smaller bristles, tend to be smaller, and bristles sit closer to the lip line. Dominant males show the most dramatic bristles and cave-guarding behavior.

 

 

Diet

In the Wild

Grazers that rasp algae, biofilm, and microorganisms from wood, roots, and surfaces in wood-heavy blackwater habitats.

 

 

In Captivity

Veggie-forward diet with occasional protein:

  • Algae wafers, spirulina-based foods, algae gel foods
  • Blanched vegetables (zucchini, leafy greens)
  • Occasional sinking pellets or frozen foods (in moderation)

A healthy L183 appears gently rounded in the belly and active at night. A pinched appearance may indicate competition, insufficient grazing surfaces, or a too-new/too-sterile tank.

 

 

Behavior & Tank Setup

Peaceful, shy, and strongly cave-oriented. Provide driftwood, tight caves, and shaded areas for confidence. Wood is essential for grazing, structure, and security. Maintain high oxygen, low nitrates, and clean water for vibrant white seams and spots.

 

 

Breeding

Cave spawner like most Ancistrus. Mature male claims a cave; female lays eggs inside; male guards and fans until hatch.

 

 

Breeder’s Tips

  • Offer multiple snug caves of varying sizes in shaded areas with gentle flow
  • Heavy algae-based feeding for 1–2 weeks, then modest protein boost for conditioning
  • Keep nitrates very low – this species is more sensitive than common bristlenose
  • Prioritize stable, soft water and consistency over chasing specific pH

 

 

Raising Fry

Fry remain cave-bound initially with male guarding. Once free-swimming, provide constant grazing: seasoned wood, leaves, stones for biofilm + crushed algae wafers/powdered foods. Use blanched soft veggies (remove leftovers promptly). Gentle sponge filtration and frequent small water changes. For best survival, many move the cave/eggs to a dedicated grow-out with seasoned sponge filter.

 

 

Quick Facts

  • Adult Size: Commonly 4 in (10 cm); larger max reported in wild
  • Temperature: 75–82°F (24–28°C)
  • pH: Broad tolerance; many aim slightly acidic to neutral
  • Diet: Algae/biofilm grazer + omnivore support
  • Temperament: Peaceful, cave-oriented
  • Best Setup: Driftwood, caves, shade, clean water, steady flow

 

 

Tropical Fish Co. Notes

L183 is what happens when a bristlenose pleco dresses up for a formal event. Under calm lighting, it resembles black velvet sprinkled with stars, finished with crisp white fin seams.

This is not a “throw-it-in” pleco like common bristlenose. Treat it as a premium species: stable temperature, pristine water, abundant wood, and secure caves. Reward: that breathtaking starlight appearance.