Zoanthids, or Zoas, are one of the most popular coral species in the reefing community. Known for their stunning array of colors, patterns, and relatively easy care requirements, they are a favorite among intermediate reef hobbyists. Whether you’re looking to add a vibrant splash of color or fill out your reefscape with hardy, fast-growing corals, Zoanthids are an excellent choice.
This guide will explore everything you need to know about Zoas, from their care requirements to safety precautions and our top recommendations for starting your Zoanthid collection.
What Makes Zoanthids So Appealing?
- Variety: Zoanthids offer endless color combinations and patterns, with names like “Rasta Zoas” and “Sunny D Zoas” capturing their unique looks.
- Hardiness: They thrive in a wide range of conditions, making them forgiving for hobbyists honing their coral-keeping skills.
- Versatility: Perfect for mixed reef setups, Zoas grow well on rockwork, frag plugs, or even along tank walls.
Lighting and Flow Requirements for Zoanthids
Zoanthids are relatively undemanding, but providing the right lighting and flow ensures they thrive and display their best colors.
- Lighting: Moderate lighting is ideal. Aim for PAR levels between 50–150.
- Too much light can cause bleaching, while too little can stunt growth.
- Flow: Low to moderate water flow helps prevent detritus buildup and keeps the colony clean.
- Avoid direct, high-intensity flow, as it can irritate their polyps.
Placement Tip: Start Zoas in a shaded or lower-light area and gradually move them up if needed.
Feeding Habits and Growth Tips
Zoanthids are primarily photosynthetic, relying on zooxanthellae algae within their tissues to convert light into energy. However, occasional target feeding can encourage faster growth and vibrant colors.
- What to Feed: Fine particulate foods like reef roids, phytoplankton, or powdered coral foods.
- How Often: Target feed once or twice a week for optimal growth.
Growth Tips:
- Maintain stable water parameters, especially alkalinity, calcium, and magnesium.
- Ensure nitrates and phosphates are present in trace amounts, as corals use these nutrients for growth.
Safety Precautions: Palytoxin Awareness
Important: Zoanthids can produce a toxin called palytoxin, which is harmful to humans if handled improperly.
Safety Tips:
- Always wear gloves and eye protection when handling Zoas.
- Avoid fragging them in enclosed spaces, as palytoxin can become airborne if disturbed.
- Wash your hands thoroughly after working in your tank.
Note: If you experience symptoms like dizziness, nausea, or difficulty breathing after handling Zoanthids, seek medical attention immediately.
Our Top 3 Favorite Zoas (and Why We Love Them)
1. Rasta Zoanthids
- Why We Love Them: Rasta Zoas are a reefing classic, with vibrant green centers, orange rings, and purple skirts. They bring instant color and contrast to any tank.
- Care Level: Easy, making them perfect for hobbyists looking for low-maintenance additions.
2. Utter Chaos Zoanthids
- Why We Love Them: With fiery orange centers and intricate patterns, Utter Chaos Zoas are a showstopper. Their bold appearance makes them a centerpiece in any reefscape.
- Care Level: Intermediate, as they may require slightly higher lighting for best coloration.
3. Sunny D Zoanthids
- Why We Love Them: Sunny D Zoas are bright and cheerful, with their yellow-orange centers and green skirts. They’re fast-growing and adaptable to various conditions.
- Care Level: Easy, a must-have for beginner and advanced reefers alike.
Shop Our Zoanthid Collection Here
Product Recommendations for Starting Your Zoanthid Collection
- Frag Plugs or Disks: Ideal for mounting Zoas and placing them securely in your tank.
- Reef Glue: Use reef-safe glue to attach Zoas to rockwork or frag plugs.
- Reef Lighting: Moderate-intensity lighting systems like AI Prime or EcoTech Radions are perfect for showcasing their colors.
Final Thoughts
Zoanthids are a versatile, hardy, and visually stunning addition to any reef tank. With the right care and placement, they can transform your tank into a colorful underwater garden. Remember to handle them safely and enjoy the rewarding experience of watching these beautiful corals thrive.
At NorCal Corals, we’re passionate about helping reef hobbyists succeed. Browse our premium selection of Zoanthids and find the perfect addition to your reef today.