A heavy grey-green armoured fish with orange-red eyes and fine dark pinstriping, rasping at a log for hours. It genuinely eats wood, and without a big piece of driftwood it cannot digest properly.
Temperament
Common health issues
- Ich (white spot)
- Fin rot
- Parasites
Care at a glance
- ExerciseLow
A calm, unhurried swimmer โ peaceful surroundings suit them best.
- GroomingAttentive tank care
Sensitive to water quality โ stay on top of testing and maintenance.
- Living spaceLarge tank
Needs a large aquarium โ several hundred liters.
- Owner experienceSome experience helps
A little know-how makes life smoother.
- Commitment10โ20 years
Plan for a long, loving relationship.
Health to watch: Ich (white spot) ยท Fin rot ยท Parasites
๐ Care guide
The Royal Pleco (Panaque nigrolineatus) comes from the Orinoco and Amazon basins and reaches about 35 to 43 cm. It belongs to the small group of catfish that actually consume wood, using spoon-shaped teeth to rasp driftwood, with gut microbes helping to process what it scrapes. Large pieces of soft driftwood are therefore not decoration but a dietary requirement, and it produces a lot of fine waste as a result. An adult needs 450 litres or more at 24-28C, pH 6.5 to 7.5 with good flow and strong mechanical filtration. Alongside wood, feed algae wafers, blanched courgette, sweet potato and sinking vegetable pellets, with only small amounts of protein. It is peaceful towards other species but territorial with other large plecos, so keep one per tank. Growth is slow and lifespan is long, easily fifteen years, which means it is a considerably bigger commitment than the small juvenile in a shop suggests. Choose it deliberately, with the tank already big enough.
Frequently asked questions
How active is a Royal Pleco?
Low. A calm, unhurried swimmer โ peaceful surroundings suit them best.
How much maintenance does a Royal Pleco need?
Attentive tank care. Sensitive to water quality โ stay on top of testing and maintenance.
What tank size does a Royal Pleco need?
Large tank. Needs a large aquarium โ several hundred liters.
Is a Royal Pleco a good fit for first-time owners?
Some experience helps. A little know-how makes life smoother.
How long do Royal Pleco live?
10โ20 years. Plan for a long, loving relationship.
What health issues affect the Royal Pleco?
Keep an eye out for Ich (white spot), Fin rot, Parasites. These are worth raising with your vet, along with any screening they recommend.
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