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FisheasyFreshwater

L183 Starlight Bristlenose Pleco

Ancistrus dolichopterus

📍 South America

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The L183 Starlight Bristlenose Pleco is a stunning nocturnal catfish featuring white spots on a dark body that resemble stars in the night sky. This peaceful algae-eater is an excellent addition to planted and community tanks, growing to a moderate size and requiring minimal special care. They are hardy, long-lived fish that spend most of their time grazing on algae and wood surfaces.

Size5"
Min Tank40g
peaceful
Zonebottom

Care Guide

Diet

Feed high-quality sinking pellets, algae wafers, and blanched vegetables such as zucchini and spinach 2-3 times weekly. Supplement with driftwood for natural grazing and calcium intake. They will consume algae naturally in the tank but benefit from additional vegetable matter.

Behavior

Nocturnal and reclusive, spending daylight hours hidden in caves or under decorations. They become more active during evening and night hours when they forage for food. Generally solitary but can coexist peacefully with other non-aggressive species.

Breeding

Breeding in captivity is moderately difficult and requires specific conditions including caves for spawning, stable water parameters, and patience. Males guard eggs and fry aggressively. Provide multiple hiding spots and maintain pristine water quality to encourage spawning behavior.

Common Diseases

Ich (Ichthyophthirius multifiliis)

Symptoms

White spots on body and fins, rapid breathing, lethargy, rubbing against surfaces

Treatment

Increase water temperature to 28-30 C (82-86 F), perform frequent water changes, use aquarium salt or ich medication as directed

Fin Rot

Symptoms

Frayed or deteriorating fins, discoloration at fin edges, lethargy

Treatment

Improve water quality through frequent water changes, reduce stress, use antibacterial medication if severe

Bacterial Infection

Symptoms

Open sores, cloudy eyes, loss of appetite, color fading

Treatment

Perform 50% water changes daily, maintain optimal water parameters, use broad-spectrum antibacterial medication

Parasitic Infection

Symptoms

Excessive scratching, weight loss, visible parasites on body, clamped fins

Treatment

Quarantine affected fish, treat with anti-parasitic medication, maintain pristine water conditions

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Quick Facts

diet
Omnivore - primarily herbivorous, feeding on algae and plant matter with occasional protein
lifespan
8-12 years
max size
13 cm (5 in)
tank size
40 gallons minimum
temperament
peaceful

Water it likes

ph
6.0-7.5
ammonia
0 ppm
nitrate
<20 ppm
hardness
4-8 dGH
temperature
75–82°F (24–28°C)

Stats

Community tips0
Kept by0 hobbyists