🌈👑🪸 Acropora tenuis “Holy Grail” – Cut-to-Order Frag
CTO Specimen – Ultra Premium Rainbow Collector Tenuis
🔹 Quick Stats
Care Level: Advanced
Temperament: Peaceful
Colour Form: Explosive multi-colour rainbow tenuis featuring vivid yellow, green, pink, orange and electric blue highlights across the branches and corallites. Under heavy actinic lighting, the coral develops extreme fluorescence with glowing axial tips and intense neon contrast. Under balanced white lighting, additional pastel transitions, metallic undertones and layered coloration become visible throughout the colony structure.
Water Conditions: 24–26 °C, dKH 7.5–8.3, pH 8.0–8.4, sg 1.024–1.026
Family: Acroporidae
Lighting: High (PAR 250–450)
Water Flow: Strong, random and turbulent
Placement: Upper reef
Type: Cut-to-Order Frag (CTO)
🧬 Overview
The Acropora tenuis “Holy Grail” is considered one of the pinnacle collector SPS corals in the modern reef hobby. Renowned for its extraordinary rainbow coloration and extreme fluorescence, this elite tenuis morph delivers exceptional visual impact under both actinic and balanced reef lighting.
As the colony matures, it develops highly detailed branching growth with vibrant coloured corallites, glowing axial tips and constantly shifting tones depending on nutrient balance and spectrum. Under blue lighting, the coral radiates intense fluorescence, while daylight-balanced systems reveal subtle pastel gradients and metallic depth across the colony.
Its combination of colour complexity, strong polyp extension and premium collector status makes the Holy Grail a true centrepiece coral for advanced SPS aquariums.
Like most high-end tenuis Acropora, long-term success depends heavily on mature reef conditions, stable alkalinity, excellent water quality and powerful turbulent flow.
🧾 Cut-to-Order Information
This coral is sold as a Cut-to-Order (CTO) frag from our established mother colony.
You will receive:
• A healthy freshly cut frag
• Strong rainbow fluorescence potential
• Fully healed or healing encrusted base depending on production timing
• Similar colouration and structure to the reference colony shown
Selected for:
• Extreme multi-colour fluorescence
• Premium collector tenuis genetics
• Vibrant axial tip coloration
• Elegant branching structure
• Exceptional SPS showpiece potential
🍽️ Care & Feeding
Primarily photosynthetic but benefits greatly from stable nutrients and occasional SPS-targeted feeding.
Recommended:
• Amino acid supplementation
• Fine particulate SPS foods
• Stable nitrate and phosphate availability
• Strong random turbulent flow
• Mature reef systems with long-term stability
📈 Optimal Parameters
Parameter | Ideal Range
Alkalinity (dKH) | 7.5–8.3
Calcium (Ca) | 400–450 ppm
Magnesium (Mg) | 1250–1400 ppm
Nitrate (NO₃) | 2–10 ppm
Phosphate (PO₄) | 0.02–0.08 ppm
📍 Placement
Place in the upper regions of the aquarium under strong stable lighting and powerful random flow. Gradual acclimation to high PAR is recommended to maintain optimal coloration and avoid stress.
🌈👑 Acropora tenuis “Holy Grail” – CTO
An elite SPS masterpiece — explosive rainbow coloration, intense fluorescence and true top-tier collector reef presence.
