Royal Plecostomus L190

Panaque nigrolineatus

Royal Plecostomus L190 is a peaceful bottom-dwelling fish. Best kept as a solitary specimen.

PeacefulBottom dwellerBest kept as a solitary specimenIntermediate – Advanced

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Explore compatibility, care or problems using this guide and your aquarium’s conditions.

Quick facts

Adult size: 16–19.7" (40.6–50 cm)
Aquarium size: ≥ 72" (≥ 182.88 cm) minimum length
Care level: Intermediate – Advanced
Temperament: Peaceful
Swimming zone: Bottom dweller
Temperature: 73–84°F (23–29°C)
pH: 6–7.5
GH: 5–20 dGH
Diet: Herbivore
Lifespan: up to 10 years
Group behavior: Best kept as a solitary specimen

Care requirements

Care level: Intermediate – Advanced.

Lifespan: up to 10 years.

Water parameters

Suitable water: temperature 23–29 °C, pH 6–7.5, GH 5–20 dGH.

Temperament and compatibility

Royal Plecostomus L190 is peaceful and suits calm community fish.

Swimming zone and behavior

This fish uses the bottom area, so leave enough open substrate area for movement and feeding.

Feeding

Use a varied routine that suits a plant-leaning or algae-focused diet.

Provide soft wood permanently, plus vegetables and suitable sinking foods. Wood is a dietary requirement, not optional decoration.

Before adding this fish

Plan for an aquarium of ≥ 72" (≥ 182.88 cm) minimum length.
Avoid aggressive or highly competitive fish.
Best kept as a solitary specimen.
Offer a varied diet suited to this species’ documented feeding habits.

Natural habitat and origin

Origin: Brazil, Colombia, Venezuela.

Important notes

Adult L190 Royal Panaque are large, territorial toward other plecos and produce substantial waste; driftwood and substantial filtration are husbandry necessities.

Similar fish profiles

Use these profiles to compare fish with similar care level, size, temperature range, or swimming behavior.

Blue Eyed Plecostomus Panaque cochliodon Same genus Same family Similar care level Intermediate – Advanced ≤ 11.8" (≤ 30 cm) 72–82°F (22–28°C) Black Ghost Knifefish Apteronotus albifrons Similar care level Same temperament Bottom dweller Intermediate – Advanced ≤ 19.7" (≤ 50 cm) 73–82°F (23–28°C) Blue Neon Goby Stiphodon atropurpureus Similar care level Same temperament Bottom dweller Intermediate – Advanced 1.6–2" (4–5 cm) 72–79°F (22–26°C) Asian Bumblebee Catfish Pseudomystus siamensis Similar care level Same temperament Bottom dweller Beginner – Intermediate ≤ 5.9" (≤ 15 cm) 68–79°F (20–26°C) Barred Bichir Polypterus delhezi Similar care level Same temperament Bottom dweller Intermediate – Advanced ≤ 13.8" (≤ 35 cm) 75–86°F (24–30°C) Adolfos Catfish Hoplisoma adolfoi Similar care level Same temperament Bottom dweller Beginner – Intermediate ≤ 2.4" (≤ 6 cm) 68–79°F (20–26°C)

FAQ

How large does Royal Plecostomus L190 get?

Royal Plecostomus L190 reaches 16–19.7" (40.6–50 cm). It needs specialist housing, long-term space, strong filtration, and carefully chosen companions.

What aquarium size does Royal Plecostomus L190 need?

Use an aquarium of at least ≥ 72" (≥ 182.88 cm) minimum length.

Is Royal Plecostomus L190 peaceful?

Yes. Royal Plecostomus L190 is recorded as peaceful and is best planned with calm community fish that do not harass it or dominate the feeding area.

What temperature is suitable for Royal Plecostomus L190?

Keep it between 23 to 29 °C.

Should Royal Plecostomus L190 be kept alone or in a group?

Royal Plecostomus L190: Best kept as a solitary specimen.