Fishician®
Aquarium species profile

Common Pleco

Hypostomus plecostomus · South America (Amazon basin, Brazil)

Minimum tank100 gal
Adult size18–24"
Care levelEasy
TemperamentSemi-Aggressive
Temperature72–86°F
pH range6.5–7.5

Diet

Herbivore/Omnivore – algae wafers, vegetables, driftwood, sinking pellets

Compatible tank mates

Most fish; territorial with other Plecos in tight space

Tank mates to avoid

Discus and delicate flat-bodied fish (may rasp slime coat at night)

Care notes

Grows much larger than pet store size suggests. Heavy waste producer. Often aggressive with age. Not the same as Bristlenose. Needs driftwood.

Check the whole aquarium. Tank size alone does not establish compatibility. Confirm adult size, water overlap, social grouping, territory, diet, and the individual animals before stocking.

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