CheckMyFishTankCommon Pleco care
Hypostomus plecostomus · Freshwater · Intermediate level care
A huge algae eater that outgrows most home aquariums.
Feeding
Once a day. A small pinch of flakes plus fresh vegetables or an algae wafer left in for a few hours. Algae wafers, blanched vegetables, driftwood to chew.
Claims a territory and guards it.
Good tank mates
Fish that pass every check with Common Pleco in a 300 gallon tank: same water, overlapping temperature, nobody gets eaten and no bullies.
Do not mix with
- Discus: Discus and Common Pleco need different water temperatures.
- Demasoni Cichlid: Demasoni Cichlid fight their own kind. Keep only one per tank.
Questions
What size tank does a Common Pleco need?
At least 150 gallons. Adults grow to about 18 inches, so plan for the adult size, not the size at the store.
What temperature does a Common Pleco like?
72 to 80 degrees Fahrenheit, with a pH of about 6.5 to 7.5. A steady temperature matters more than hitting one exact number.
How many Common Pleco should I keep together?
Keep only one. Common Pleco fight their own kind.
What do Common Pleco eat?
Algae wafers, blanched vegetables, driftwood to chew. Feed once a day: a small pinch of flakes plus fresh vegetables or an algae wafer left in for a few hours.
Sources
Checked against these sources on 2026-11-10. When sources disagree we use the safer number.