What type of fish is it pink and round with no tail but two fins are quite aggressive?

The fish you are describing sounds like a piranha. Piranhas are freshwater fish that are native to South America. They are known for their sharp teeth and aggressive behavior. Piranhas are typically pink or red in color and have a round body with no tail. They have two fins on their back and one fin on their belly. Piranhas live in groups and can be very dangerous to humans.