Which Aquatic Livestock Should You Add to Your Saltwater Tank?

This easy-to-care-for, semi-aggressive fish is a carnivore that typically grows to a maximum size of 5.5 inches. The Watchman Goby does best in a 30-gallon tank, with a water temperature that is between 72 and 78 degrees.

Good for beginners, Zoanthid generally requires water temperatures between 77 and 79 degrees, with moderate to low lighting and water flow. It is one of the least aggressive types of coral when it comes to defense, meaning that it can be damaged easily.

This omnivorous fish is easy to care for and has a tranquil temperament. The typical maximum size is between 3 and 4 inches, with it doing best in a tank that is at least 20 gallons. The water temperature should be between 73 and 80 degrees.

This peaceful creature requires a moderate level of care. A carnivore, the Kuda Seahorse can grow to a maximum size of 6 inches. It should have a 30-gallon tank with slow-moving water that is between 72 and 78 degrees.