A Natural Shield for Your Reef: How Easy Reefs' Tetraselmis chuii Supports Coral Health and Growth

At Biota, we’re always looking for cutting edge solutions that help aquarists maintain thriving, resilient reef systems, and we’re excited to spotlight one of the most promising tools we’ve seen: Tetraselmis chuii, the powerhouse microalgae behind several Easy Reefs products.

Easy Reefs produces T. chuii under conditions that supercharge its production of three key enzymes:

• SOD (Superoxide Dismutase)

• CAT (Catalase)

• GPX (Glutathione Peroxidase)

These enzymes are known as the first line of immune defense in both corals and fish. When corals are stressed, whether by infection, sudden environmental shifts, or pests like ciliates, they attempt to ramp up their own antioxidant enzyme production. But this immune response can only be sustained for about 24 - 36 hours before collapsing, leaving the coral vulnerable to RTN (Rapid Tissue Necrosis) or STN (Slow Tissue Necrosis).

That’s where Tetraselmis chuii comes in.

Science Backed Coral Support

A recent paper on Goniopora corals demonstrated how antioxidant enzyme levels directly impact coral survival during infection. With this science, Easy Reefs’ uniquely cultivated T. chuii delivers 30 times more SOD, CAT, and GPX than any other known microalgae, and even more than melon extract, a well known antioxidant source.

This is not just preventative, it’s a new tool for managing real coral health crises. For hobbyists battling new frags melting, mysterious STN events, or persistent ciliate infections, the enzymes in T. chuii may act as a natural shield.

Where You’ll Find It

You can find this incredible microalgae in several Easy Reefs products:

• EasyArt: 100% Tetraselmis chuii, ideal for targeted immune support

• EasyBooster and EasyLPS: Blends that include high levels of T. chuii, perfect for regular coral feeding

• EasyFarm: A professional grade blend with astonishing results: studies show up to 70% increased coral growth through heterotrophic feeding alone. In fact, this product sustained Acropora polyps with zero zooxanthellae, demonstrating 100% metabolic support via nutrition.

Not Just for SPS

While EasyFarm was originally tested on NPS corals at the University of Murcia, its balanced mix of amino acids, fatty acids, vitamins, and high-efficiency enzymes makes it suitable for a wide range of coral types from SPS to LPS, and even filter feeders like tunicates and sponges.

As Easy Reefs prepares to present their latest findings at the International Coral Reef Symposium, the spotlight is turning toward how nutritional support can reduce oxidative stress, boost immune responses, and promote healthy zooxanthellae regulation, all essential factors in coral health and reproduction.

For Reefkeepers Who Want More Than Survival

In a time when reef aquariums face increasing environmental challenges, Tetraselmis chuii offers something revolutionary: science-driven, bioavailable protection and nutrition for your corals.

Whether you're an advanced aquarist with a high end Acropora tank or just getting into LPS, including T. chuii-based products in your routine can mean the difference between surviving and thriving.

Shop now and see the difference: https://shop.thebiotagroup.com/collections/feeds