Max Size: 22.5cm

Gold Nugget Plecostomus (Baryancistrus xanthellus)

Gold Nugget plecos are relatively calm, and a very eye-catching species but are only recommended for well-established aquariums and experienced aquarists only. They require some thought in the choice of their tankmates. Males will get along fine with most fish but will possibly fight males of their own species or even other Plecos that would also hang out on the bottom of the aquarium. Species of fish that swim in the tank's upper levels make great companions. In addition to not bothering Plecos, such fish will help to balance the tank's structure.

Gold Nugget Plecos are pretty much entirely black with a multitude of small yellow spots that cover their whole body. These spots are evenly spaced and roughly the same size all around.

These Catfish have yellow distal bands on the dorsal and caudal fin with the colour being brighter than the spots on their body.

These Plecos have a suckermouth and head that angles down. The body is most extensive around the eyes and pectoral fins and progressively gets thinner towards the caudal peduncle. These fish have substantial pectoral fins that point backwards. They have a fan-like dorsal fin and a balanced caudal fin that’s slightly bigger.


Gold Nugget Plecostomus
Gold Nugget Plecostomus
Gold Nugget Plecostomus
Quick Facts
Scientific NameBaryancistrus xanthellus
Other NamesGold Nugget, Golden Nugget Pleco
Aquarium LevelBottom
DifficultyIntermediate - Advanced
Best kept asLoners
Lifespan3 - 7 years
Water Parameters
Water TypeFreshwater
PH6.0 - 7.5
GH5 - 15
TDS54 - 268
77 - 86℉
25 - 30℃

Natural Habitat

Xingu River


In the home aquarium, the Gold Nugget Plecostomus will readily accept most good quality dried foods such as granules, flakes and sinking pellets. These modern food products have been developed to provide all adequate nutrition to maintain your fish's health and dietary requirements.

Providing additional foodstuffs such as live, frozen, and freeze-dried meals such as bloodworm, daphnia, and tubifex once or twice a week will provide additional benefits to your fish's health and well-being but is not a must for this fish.

It should be noted that bloodworms should only be given as an occasional treat and should not be used as the staple diet as they are difficult for fish to digest and can potentially cause blockages.

This fish is an omnivore in the wild, meaning it will consume some vegetable matter. Although most modern fish foods take this into account and include them in their products, you can still supplement your fish's diet with blanched vegetables such as spinach, broccoli, and zucchini. Ensure you do not overfeed your fish and remove any leftovers the following day.

Sexual Dimorphism

Dimorphism is challenging to differentiate when it comes to the Gold Nugget Pleco unless the fish have reached sexual maturity. There is a flatter, more levelled slope to the foreheads of males, and their heads are slightly wider. In comparison, the females have a more rounded forehead and are somewhat plumper at the midbody when in spawning condition.

Other Plecostomus of interest

Bristlenose Pleco(Ancistrus Cirrhosus)
Butterfly Plecostomus L168(Dekeyseria Brachyura)
Flash Plecostomus(Panaqolus albivermis)
Galaxy Plecostomus L029(Leporacanthicus galaxias)
Gold Stripe Tiger Panaque(Panaqolus sp)
Golden Bristlenose Plecostomus(Ancistrus sp)
View all Plecostomus
Date Added: 19/10/2020 - Updated: 06/09/2022 14:30:10