Common Pleco Breeding

There are many different kinds of Plecos. The Common Pleco is the name given to a group of armored catfish under the family Loricariidae. Plecos are difficult to breed in captivity, and only a few species are recommended for breeding. There are many different aspects to consider before deciding to breed Plecos.

  1. Sexing

    • Fish do not have obvious gender traits like mammals, so it can be confusing trying to tell which fish is male or female. In most Plecos, male fish are smaller and have bigger whiskers or barbells. In Bristlenose catfish, males are the only gender with barbells.

    Tank

    • Plecos need acidic to slightly alkaline water, usually between 6.0 and 7.5 pH. They thrive in warm water between 68 and 82 degrees. Make sure to change at least 30 percent of the tank's water each week. Letting waste build up in the tank can lead to a Pleco injuring itself trying to get out to avoid the waste.

    Environment

    • Most Plecos are bred in ponds, but breeding can occur in an aquarium. A large tank is best for breeding purposes, especially since Plecos can reach up to 2 feet long. Plecos are also territorial, so large tanks with plenty of hiding spaces are a must. Live plants are a good addition to a Pleco aquarium as long as they are tough. Plecos can uproot plants looking for food or trying to burrow to spawn.

    Spawning

    • Whether eggs are deposited inside a cave or buried under the tank floor depends on the type of Pleco. Bristlenose Plecos often spawn inside a cave. It typically takes around a week after fertilization for the eggs to hatch and another week for the fry to begin swimming. The male Pleco stays with the fry to keep them safe.