National Sea Monkey Day

National Sea Monkey Day is an annual American holiday dedicated to these fascinating aquarium creatures. Sea monkeys are essentially a type of shrimp, scientifically known as *Artemia salina*, and they make great aquarium pets as an alternative to more popular fish! This holiday is celebrated on May 16 each year.

History

The history of National Sea Monkey Day can be traced back to 1957 when Harold von Braunhut first encountered shrimp with the biological name *Artemia salina* in a pet store. He was captivated by them and came up with the idea of turning them into popular aquarium pets. He collaborated with biologist E. D’Agostino, who developed a special nutrient mixture that allowed the shrimp to thrive in aquarium conditions.

Since the 1960s, these aquarium animals have become very popular. Complete kits, including a nutrient mix, a breeding tank, and shrimp eggs, became available for sale, further increasing their popularity.

Interesting Facts

• The shrimp are called sea monkeys because their tails resemble the shape of a monkey’s tail.
• Sea monkeys have become a notable part of American culture, even appearing in animated series such as *South Park* and *The Simpsons*.
• Today, sea monkeys are sold in special packages containing eggs. To raise them, place the eggs in an aquarium and support their growth by adding a nutrient mixture. They will begin to grow and develop, becoming an enjoyable pet to watch.

How to Celebrate

Learn more about these unique shrimp. If you’re considering getting aquarium pets, sea monkeys might be a fun choice. Full instructions on how to raise and care for them can be found online.

Share a post about the holiday on social media. Ask others what they think of these quirky aquarium pets.

When is National Sea Monkey Day in 2025?

National Sea Monkey Day is observed on May 16 each year.

Observations