While piranhas are primarily known for their aggressive feeding habits on live fish, they are opportunistic scavengers and will readily consume dead animals, including dead goldfish.
However, it's important to note that the size of the goldfish and the type of piranha will influence their willingness to eat it. Smaller piranhas might not be interested in a large dead goldfish, while larger piranhas may consider it a meal.
Here are some factors to consider:
* Piranha species: Some piranha species are more aggressive and scavengers than others.
* Goldfish size: Larger goldfish might be more appealing to piranhas.
* Availability of other food: If other food sources are readily available, piranhas might be less likely to eat a dead goldfish.
It's worth noting that feeding piranhas dead fish is not recommended as it can contribute to poor water quality and may not provide them with the necessary nutrients.