Can Gold Nugget Pleco (L018) and Royal Pleco (L190) Live Together?

🟑Possible with Caution

Keeping Gold Nugget Pleco (L018) and Royal Pleco (L190) together is possible but requires caution due to potential behavioral clashes. Provide a spacious tank of at least 540 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.


At a Glance

Gold Nugget Pleco (L018)

Baryancistrus xanthellus

Royal Pleco (L190)

Panaque nigrolineatus

🐟Family Group
Gold Nugget Pleco (L018)
Catfish
Royal Pleco (L190)
Catfish
Temperament
Gold Nugget Pleco (L018)
Semi-Aggressive (6/10)
Royal Pleco (L190)
Semi-Aggressive (5/10)
Temperature
βœ“ Compatible
Gold Nugget Pleco (L018)
27–32Β°C
Royal Pleco (L190)
22–28Β°C
pH Range
βœ“ Compatible
Gold Nugget Pleco (L018)
6–7.5
Royal Pleco (L190)
6.5–7.5
Hardness (dGH)
βœ“ Compatible
Gold Nugget Pleco (L018)
2–12
Royal Pleco (L190)
5–15
Water Type
βœ“ Compatible
Gold Nugget Pleco (L018)
Freshwater Only
Royal Pleco (L190)
Freshwater Only
Flow Preference
βœ“ Compatible
Gold Nugget Pleco (L018)
High
Royal Pleco (L190)
High
Min Tank Volume
Combined: 540 L
Gold Nugget Pleco (L018)
250 L
Royal Pleco (L190)
450 L
Swimming Level
Shared: 1 zone
Gold Nugget Pleco (L018)
Bottom
Royal Pleco (L190)
Bottom
🏷️Behavior Tags
Gold Nugget Pleco (L018)
Territorial (Defends specific area)Aggressive to same species/look-alikesShy / Slow Moving (Easily Stressed)
Royal Pleco (L190)
Territorial (Defends specific area)NocturnalAggressive to same species/look-alikesPlant Destroyer

Behaviour & Temperament

Gold Nugget Pleco (L018) is a moderately assertive species (6/10), while Royal Pleco (L190) is moderately assertive (5/10). This modest difference means Gold Nugget Pleco (L018) may occasionally assert dominance over Royal Pleco (L190).

Gold Nugget Pleco (L018) and Royal Pleco (L190) both frequent the Bottom (Substrate) region of the setup. This overlap can increase competition for space, so providing ample room and cover is important to keep both species comfortable.

Additional behavioural considerations to keep in mind: Two territorial species may clash over territory, especially in smaller tanks.

Worth noting: Royal Pleco (L190) is nocturnal and will be most active after lights-out, naturally reducing daytime encounters.

To improve the chances of a peaceful coexistence in this community tank: Provide a significantly larger tank (at least 50% more volume than the minimum) to allow both Gold Nugget Pleco (L018) and Royal Pleco (L190) to establish separate territories. Add plenty of line-of-sight breaks using driftwood, rocks, and dense planting to reduce territorial confrontations.

Water Parameters

The safe temperature window for both species falls between 27Β°C and 28Β°C. Aim for the midpoint of this range (around 27.5Β°C) for optimal comfort.

Both fish can tolerate a pH between 6.5 and 7.5. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 5–12 dGH. Regular testing will ensure conditions stay within this range. An aquarium test kit is recommended for monitoring.

Tank Setup

To house Gold Nugget Pleco (L018) and Royal Pleco (L190) together, plan for an aquarium of at least 540 litres with a minimum length of 150 cm. This accounts for the larger species' space requirements with an additional 20 % buffer to reduce territorial tension.

Because this pairing requires extra vigilance, include plenty of hiding spots β€” caves, driftwood, and dense plant clusters β€” so the less dominant fish can retreat when needed.

Specific environmental needs for this combination include: Driftwood (Digestion/Hiding), Smooth Gravel (Sensitive Barbels), Established Algae (Otocinclus). Meeting these requirements will help both species thrive.

Both species do well with high (river/stream) water movement, so a standard filtration setup rated for the tank volume should suffice.

Find the right tank equipment

Browse tanks, dΓ©cor, and equipment suited for this setup.

Suitable Tank Sizes

Standard aquarium sizes large enough for both Gold Nugget Pleco (L018) and Royal Pleco (L190).

Frequently Asked Questions

Can Gold Nugget Pleco (L018) and Royal Pleco (L190) live together?

They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 540 litres), plenty of hiding spots, and watch for signs of stress or aggression.

What size tank do Gold Nugget Pleco (L018) and Royal Pleco (L190) need?

A minimum of 540 litres (tank length at least 150 cm) is recommended. This provides enough space for both species to establish their own areas and reduces the likelihood of territorial disputes.

What water temperature is best for Gold Nugget Pleco (L018) and Royal Pleco (L190) together?

Keep the aquarium between 27Β°C and 28Β°C. A target of around 27.5Β°C sits comfortably within both species' preferred ranges.

Are Gold Nugget Pleco (L018) or Royal Pleco (L190) aggressive?

Gold Nugget Pleco (L018) is moderately assertive (6/10) and Royal Pleco (L190) is moderately assertive (5/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Gold Nugget Pleco (L018) and Royal Pleco (L190) need?

Both species overlap in the 6.5–7.5 pH range. Consistency is key β€” avoid sudden swings, and test regularly to stay within this window.

How do I manage Gold Nugget Pleco (L018)'s territorial behaviour?

Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Gold Nugget Pleco (L018) space to claim a territory without encroaching on the other fish's area. Adding dΓ©cor that divides the tank into distinct zones works especially well.

Does Royal Pleco (L190) being nocturnal affect compatibility?

Royal Pleco (L190) is most active after lights-out, which naturally reduces daytime encounters with its tank mate. This can actually be beneficial, as both fish get undisturbed time to feed and explore. Just ensure food reaches Royal Pleco (L190) during evening hours.


Related Comparisons

Gold Nugget Pleco (L018) & Common Pleco

Β·

πŸ”΄Not Recommended
Gold Nugget Pleco (L018): PeacefulCommon Pleco: Peaceful

Gold Nugget Pleco (L018) & Cuckoo Catfish

Β·

🟑Possible with Caution
Gold Nugget Pleco (L018): PeacefulCuckoo Catfish: Peaceful

Gold Nugget Pleco (L018) & Featherfin Squeaker

Β·

🟑Possible with Caution
Gold Nugget Pleco (L018): PeacefulFeatherfin Squeaker: Peaceful

Gold Nugget Pleco (L018) & Red-Tail Catfish

Β·

🟑Possible with Caution
Gold Nugget Pleco (L018): PeacefulRed-Tail Catfish: Peaceful

Gold Nugget Pleco (L018) & Pictus Catfish

Β·

πŸ”΄Not Recommended
Gold Nugget Pleco (L018): PeacefulPictus Catfish: Peaceful

Gold Nugget Pleco (L018) & Zebra Pleco (L046)

Β·

🟑Possible with Caution
Gold Nugget Pleco (L018): PeacefulZebra Pleco (L046): Peaceful

Royal Pleco (L190) & Clown Pleco (L104)

Β·

🟑Possible with Caution
Royal Pleco (L190): PeacefulClown Pleco (L104): Peaceful

Royal Pleco (L190) & Iridescent Shark

Β·

🟒Ideal Tank Mates
Royal Pleco (L190): PeacefulIridescent Shark: Peaceful

Royal Pleco (L190) & Bala Shark

Β·

🟒Ideal Tank Mates
Royal Pleco (L190): PeacefulBala Shark: Peaceful

Royal Pleco (L190) & Bristlenose Pleco

Β·

🟒Ideal Tank Mates
Royal Pleco (L190): PeacefulBristlenose Pleco: Peaceful

Royal Pleco (L190) & Bronze Corydoras

Β·

🟑Possible with Caution
Royal Pleco (L190): PeacefulBronze Corydoras: Peaceful

Royal Pleco (L190) & Denison Barb (Roseline Shark)

Β·

🟒Ideal Tank Mates
Royal Pleco (L190): PeacefulDenison Barb (Roseline Shark): Peaceful