GMK Zoa Frag – Grand Master Krakatoa – High End Zoanthid – UK Grown

This is a single-polyp GMK Zoanthid frag. First image shows the mother colony for reference. Second image shows the exact frag for sale, aquacultured in the UK and fully healed before listing.

GMK Zoanthid (Grand Master Krakatoa) is a high-end zoa strain, known for its intricate patterning, intense centre coloration and distinctive banded lashes, GMK is one of the most recognisable and sought-after collector strains in the reef hobby.

Coral Details:

• Species: Zoanthid 
• Strain: Grand Master Krakatoa (GMK)
• Polyp count: 1
• Difficulty: Intermediate
• Lighting: ~80–260 PAR
• Flow: Moderate
• Growth: Fast once stable

GMK Zoanthids are known to be temperamental when parameters fluctuate and can be prone to melting in unstable systems. However, once established in stable reef conditions, they grow quickly and develop strong colour and structure.

Shipping and Returns:

UK next-day delivery is available via Royal Mail Special Delivery (delivery date selected at checkout).

Collection is available in Hertfordshire, please contact us at zoanation.uk@gmail.com.

Unfortunately we do not accept returns due to the nature of the products.

DOA Policy:

All corals are covered by our DOA (Dead on Arrival) policy.

In the unlikely event of a DOA, please contact us within 2 hours of delivery with clear photos of the coral inside the unopened bag.

Upon verification, we will offer either:

• A refund for the affected item, or
• A free replacement (subject to availability)

Please note:

• DOA coverage is void if no one is available to receive and sign for the parcel on the scheduled delivery day.

🌿 Zoanthid Acclimation upon Arrival

Beginner Level: Float sealed bag in tank water for 30 mins to temperature-acclimate.

Intermediate Level: Drip acclimate for 30 mins to match water parameters.

Expert Level: For experienced reefers with SPS dominant tanks or proven success with intermediate zoas only. Drip acclimate for 30 mins and maintain:

PO₄: 0.03–0.07 ppm

KH swing: ≤ 0.2 dKH/day

pH swing: ≤ 0.1/day

💡 After Introduction: Place in a low-light are(~50 PAR) with moderate flow for a few days to acclimate before moving it to its recommended PAR.

 ⚠️ Improper acclimation process might lead to weeks of prolonged sulking or even coral loss.

📦 Shipping Notice: If delivery is unfortunately delayed by Royal Mail, please drip acclimate over 60 mins regardless of difficulty level and contact us immediately for possible DOA coverage.