Royal Pleco

Royal Pleco key facts

Care level

Intermediate

Lifespan

10-18 years

Size

35-43cm

Temperature

22〜26℃

Diet

Driftwood, algae, vegetables and sinking vegetable-based wafers

Tank

Adults exceed 40cm, so a large footprint is needed. Always include several pieces of softer driftwood and provide one hiding and resting place per fish. Keep the water well oxygenated.

Water Temperature & Quality

FishBase gives 22-26C, pH 6.5-7.5 and 2-15dH. The wood-based diet produces a great deal of waste, so allow generous filtration and frequent water changes.

Tank Mates

Territorial and prone to conflict with its own kind and close relatives. It combines well with midwater species that use a different level. Being nocturnal, it is rarely seen while the lights are on.

Diet & Feeding

It rasps and digests wood. Keep driftwood available at all times and supplement with algae, vegetables and sinking vegetable-based wafers. A diet dominated by meaty foods does not suit it.

Breeding & Spawning

Reliable records of captive breeding are scarce. Traded fish are mostly wild caught, and the species is reported to be harvested heavily for the aquarium trade in Colombia.

Health & Notes

Newly imported fish are often undernourished and need dedicated feeding and water management. Running out of driftwood readily leads to digestive problems. It is not listed by CITES and the IUCN assesses it as Least Concern.

About Royal Pleco

A large plecostomus with gray coloring, black stripes, and red eyes. One of the few fish that can digest wood, making driftwood part of its diet. Grows to 35-43cm and needs a spacious, oxygen-rich tank, best suited to intermediate aquarists.

7 things to know before welcoming a Royal Pleco

1. 1Plan for its adult size

   Adults can reach 35-43cm, so it's important to set up a tank with adequate volume from the start. Upgrading tanks later puts stress on the fish, so plan around its full-grown size before you begin.

2. 2Driftwood is essential

   Royal Plecos are one of the few fish that can gnaw on and digest wood, so driftwood is part of their diet rather than just decor. Keep gnawable driftwood in the tank at all times and replace it once it's worn down.

3. 3Keep oxygen levels high

   As a large fish with high oxygen demand, it needs strong aeration and water flow from filtration to maintain sufficient dissolved oxygen. Poor circulation can quickly affect its condition, so choose a filter with extra capacity.

4. 4Calm and likes to hide

   Royal Plecos are generally quiet and tend to stay hidden among driftwood or rocks during the day. Since they lean nocturnal, it's normal not to see them much in daylight hours.

5. 5Compatibility with tankmates

   Their mild temperament makes them suitable tankmates for other large fish, but territorial disputes can arise between Royal Plecos or similarly sized plecos. Provide multiple hiding spots and avoid overcrowding the layout.

6. 6Suited to intermediate keepers

   Given its large size and specialized diet, this species suits aquarists with some prior experience rather than first-time fishkeepers. Familiarity with water quality management and large tank maintenance helps it thrive.

7. 7Prepare your setup first

   Set up a spacious tank sized for its adult growth, a powerful filtration system, and gnawable driftwood before bringing one home. Building a generous environment from the start is easier on the fish than adding equipment later.

Frequently asked questions about Royal Pleco

Q.How big does a Royal Pleco get?

A.Adults typically reach 35-43cm, making it a large plecostomus. Even if it's small at purchase, choose a tank sized for this eventual adult size.

Q.Do I need driftwood to keep this fish?

A.Royal Plecos gnaw on and digest wood, so driftwood plays an important nutritional role for them. It's not strictly mandatory, but keeping some in the tank at all times is recommended for their health.

Q.Can it live with other fish in the same tank?

A.Its mild temperament makes it compatible with other large fish, but territorial conflicts can occur with its own species or other plecos. Provide multiple hiding spots and plan the layout with this in mind.

Q.Is this a good fish for beginners?

A.Because of its large adult size and need for well-oxygenated water, it's considered an intermediate-level species. It's best attempted after you've gained some experience keeping tropical fish.

Q.It rarely shows itself during the day — is that normal?

A.Royal Plecos are calm and lean nocturnal, so hiding among driftwood during daylight hours is natural behavior. As long as it's eating well, there's no need to worry if you don't see it often.

Useful tools for Royal Pleco care

Learn more about Royal Pleco in the encyclopedia

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