Do red bellied piranhas have a symbiotic relationship wiht any other animals?

Red-bellied piranhas do not have well-documented symbiotic relationships with other animals, as they are primarily known as solitary predators. However, they can sometimes be observed in mixed-species groups with other fish in their habitat, which may provide some benefits like increased protection from larger predators. Additionally, their feeding behavior can help maintain the health of aquatic ecosystems by controlling fish populations. Overall, while they may interact with other species, these interactions are typically not characterized as symbiotic.