• Green Spotted Bristlenose Pleco (Ancistrus sp.)
  • Green Spotted Bristlenose Pleco (Ancistrus sp.)
  • Green Spotted Bristlenose Pleco (Ancistrus sp.)
  • Green Spotted Bristlenose Pleco (Ancistrus sp.)
  • Green Spotted Bristlenose Pleco (Ancistrus sp.)
  • Green Spotted Bristlenose Pleco (Ancistrus sp.)
  • Green Spotted Bristlenose Pleco (Ancistrus sp.)
  • Green Spotted Bristlenose Pleco (Ancistrus sp.)

Green Spotted Bristlenose Pleco (Ancistrus sp.)

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* For the safety of our animals, we now ship live fish exclusively via UPS Next Day Air.  If your order contains this item, you will only see UPS Next Day Air as a shipping option during checkout *


The Green Spotted Bristlenose Pleco is an undescribed and uncommon species that is rarely available!


The Green Spotted Bristlenose Pleco (Ancistrus sp.) is an undescribed member of the Loricariidae family of South American suckermouth catfishes. Its facial area becomes adorned with many bristle-like appendages beginning in sub-adulthood. Both sexes grow the appendages, but the growth and length is much more pronounced in males. This species is distinctly different than the many other more common bristlenose species, most of which are part of the Ancistrus cf. cirrhosus superspecies. The Green Spotted Bristlenose Pleco has an overall dark gray body that is covered in light gray-green spots and it has a somewhat more flat, elongated body shape than many other bristlenose species.


A generally peaceful and hardy species, the Green Spotted Bristlenose Pleco is an excellent, undemanding candidate for most aquariums. Unlike the widely-seen Common Pleco (Hypostomus plecostomus) and Trinidad Pleco (Hypostomus punctatus), which easily reach a monstrous size of 18 to 20+ inches (45 to 51+ cm), the Green Spotted Bristlenose Pleco grows to a size of only 4 to 5.9 inches (10 to 15 cm). This smaller size makes for a much more manageable (and less messy) pleco that can thrive permanently in a well-maintained aquarium as small as 40 to 55 gallons. Male plecos may be somewhat territorial with other males of their species, but disputes can usually be diffused by providing ample territory and hiding places for each fish. All other tankmates will be generally ignored, although it is possible that small shrimp fry might fall prey to the Green Spotted Bristlenose Pleco. However, some large-scale shrimp suppliers breed Bristlenose Plecos in the same pools they use for shrimp breeding.


The Green Spotted Bristlenose Pleco is primarily nocturnal, but will often become active during daytime hours once established in an aquarium with plenty of driftwood, rockwork, and other hiding places. It is not known to eat wood heavily like some plecos (Panaque sp., etc.), but it may benefit from some supplementary wood (or bio-film on driftwood). The Green Spotted Bristlenose Pleco will not bother most plants, but it will eat plenty of algae in the aquarium, especially as a juvenile. Feed the Green Spotted Bristlenose Pleco a diet heavy in vegetable matter, including high-quality vegetable flakes, sinking algae wafers and pellets. It will also appreciate being fed some fresh vegetables such as shelled peas, spinach, zucchini and cucumber. Occasional meaty foods such as bloodworms are also beneficial when fed sparingly. This fish eats constantly, so too much meat/animal protein in its diet can be unhealthy for the fish as well as the level of waste it produces in the aquarium.


*IMPORTANT* Please "Choose a Variant" above before adding this fish to your cart. The variants we're currently offering are:

    • 1 Subadult (3+ inches), unsexed
    • 3 Subadult (3+ inches), unsexed
    • 6 Subadult (3+ inches), unsexed


What We Like About This Fish:

  • Heavily spotted coloration
  • Very peaceful and hardy addition to almost any aquarium
  • At a maximum size of 4 to 5.9 inches, this is a very practical and manageable fish
  • This fish will not bother most plants, but it will likely help with algae control, especially as a juvenile. It will also scavenge and consume most uneaten fish food
  • Unique appearance as well as plenty of personality



  • pH level range: 6.0 - 7.5 
  • Temperature range: 79° - 86° F (26° - 30° C)
  • KH: 1 - 10 dKH
  • Minimum tank size: 30 gallons for 1 fish, 55+ gallons for a group



  • Diet: Omnivorous, but meatier foods should only be fed sparingly
  • Social behavior: Generally solitary, but will socialize somewhat, especially during breeding.
  • Origin: South America
  • Average adult size: 4 – 5.9 inches (10 - 15 cm)
  • Average purchase size: 3+ inches (7.6 cm)


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