Complex sentence: The waters are populated with fish and vegetation of varying sizes including larger fish such as; sharks, groupers, barracuda, angelfish, and butterfly fish, miniature crabs, and daredevil shrimp.
Split into simpler sentences: The waters are populated with fish and vegetation of varying sizes. These include larger fish such as; sharks, groupers, barracuda, angelfish, and butterfly fish, down to the tiniest marine life such as miniature crabs and daredevil shrimp.