Your Constitution score increases by 2 and your Strength score increases by 1.

Sahuagin mature at the same rate humans do and reach adulthood around the age of 20. They live much longer than humans, however, often exceeding 180 years.

Sahuagins are unpredictable and violent creatures but they work together in packs making them lawful. They are very tribal and territorial. They hunt, fish, sleep, and live with each other, stopping anything that gets in their way. 

You have proficiency in the Athletics and Perception skills.

You have advantage on saving throws against being charmed, frightened, paralyzed, poisoned, stunned, or put to sleep.

You can breathe air and water, but you need to be submerged at least once every 4 hours to avoid suffocating.

Locathah stand between 5 and 6 feet tall and average about 150 pounds. Your size is Medium.

Your base walking speed is 30 feet, and you have a swim speed of 40 feet.

You can speak, read, and write Common, Sahuagin, and another exotic language of your choice. 

You gain the Bite (piercing) and Claw (slashing) attack actions, each do 1d4+1.