Complex sentence: It can range up to 11 inches (28 cm) in length and has a reputation for becoming increasingly jealous of its territory as it matures, and also can be aggressive to other fish, especially slow, flat-bodied species.
Split into simpler sentences: It can range up to 11 inches (28 cm) in length. It has a reputation for becoming increasingly jealous of its territory as it matures, and also can be aggressive to other fish, especially slow, flat-bodied species.