Lobetoothed Piranha
Pygopristis denticulata
The most docile piranha you can keep, but those teeth are still very real.

About
The lobetoothed piranha (Pygopristis denticulata) sits in an interesting spot in the piranha family. It's generally considered one of the more placid members of the group, yet it still carries the formidable, bite-capable dentition that makes all piranhas worthy of respect. In the wild it's found across a broad stretch of northern South America, from the Orinoco basin and Guiana Shield river systems down into tributaries of the lower Amazon, where it likely feeds on a mix of fish and other animal matter. What sets this species apart anatomically is its multicusped teeth, which look noticeably different from the single-pointed teeth of more notorious relatives. The lobe-like cusps are where both the common and scientific names come from. Despite showing up only rarely in both scientific literature and the hobby, it has a reputation as a manageable piranha for keepers willing to provide serious space. A 100-gallon tank is a real minimum, and like most piranhas it does best when fed with care and handled cautiously. Those teeth can cause genuine injury regardless of temperament. With proper conditions it can live well into its teens, making it a long-term commitment for anyone drawn to the less commonly seen side of the piranha world.
Similar species
Other fish you might consider
Good tank mates
Species that tend to coexist peacefully with Lobetoothed Piranha
From the same region
Share the same natural habitat. Great for a biotope-themed tank
Frequently asked questions
- How big does the Lobetoothed Piranha get?
- The Lobetoothed Piranha reaches about 5–8.5" as an adult.
- What size tank does the Lobetoothed Piranha need?
- A minimum of 100 gallons is recommended for the Lobetoothed Piranha.
- What water parameters does the Lobetoothed Piranha need?
- The Lobetoothed Piranha does best with a temperature of 73–82°F, a pH of 6.5–7.5, hardness around 5–10 dGH.
- Is the Lobetoothed Piranha aggressive?
- The Lobetoothed Piranha is semi-aggressive. It can work in a community with careful tankmate choices and enough space.
- What does the Lobetoothed Piranha eat?
- The Lobetoothed Piranha is a carnivore. It needs a meaty, protein-rich diet of frozen or live foods.
- How long does the Lobetoothed Piranha live?
- With good care, the Lobetoothed Piranha typically lives 12-18 years.