Pleco Care Guide

Quick answer

Pleco should be kept in a stable, fully cycled aquarium or marine system that matches its adult size and behavior. Start with the tank size and temperature below, then adjust stocking, filtration and food to the exact species and your water test results.

Tank setup

• Use a cycled tank before adding livestock. Ammonia and nitrite should always test 0 ppm.
• Match temperature, flow and hiding places to the animal's natural behavior.
• Plan around adult size, not store size. Small juveniles can quickly outgrow beginner tanks.

Feeding

Feed small portions that are eaten quickly. For omnivores, rotate staple prepared foods with vegetable or frozen foods. For algae grazers and invertebrates, make sure biofilm, minerals and supplemental foods are available when natural grazing is limited.

Tank mates

Choose tank mates with similar temperature, water chemistry, temperament and feeding speed. Avoid fin nippers, predators, and species that will outcompete slow feeders.

Common mistakes

• Adding animals before the tank is cycled.
• Using a tank that is too small for adult size or group behavior.
• Overfeeding and then treating symptoms without testing water first.
• Mixing animals that need different temperatures, salinity or hardness.