🪸 Acropora cerealis “Emerald Crown”
Green with Purple Tips Indonesian Acropora – Cut-to-Order SPS Frag
🔹 Quick Stats
Care Level: Advanced
Temperament: Peaceful (requires space for branching growth)
Colour Form: The Emerald Crown Cerealis features vibrant emerald-green branches contrasted by striking purple growth tips. Under actinic lighting the green tissue glows intensely while the tips develop rich violet and electric purple highlights. Under balanced white lighting the colony reveals a natural gradient between deep reef-green branches and bold lavender-to-purple axial tips, creating a classic yet highly desirable SPS colour combination.
Water Conditions: 24–26 °C, dKH 7.5–8.5, pH 8.0–8.4, sg 1.024–1.026
Family: Acroporidae
Lighting: High (PAR 250–400)
Water Flow: Strong and turbulent
Placement: Upper rockwork or high-energy reef zones
🧬 Overview
The Acropora cerealis “Emerald Crown” is a beautiful Indonesian SPS that combines a vivid green body with contrasting purple growth tips. A. cerealis naturally forms compact, tightly packed branching structures that create dense colonies with excellent polyp extension when maintained in stable reef conditions.
The green and purple contrast is one of the most iconic colour combinations in SPS reef keeping. As the colony grows, the purple tips intensify along the branch ends, creating a dramatic crown-like appearance that stands out strongly under modern reef LED lighting.
Cut-to-Order Frag:
This coral is cut to order from a healthy, established Indonesian mother colony. Each frag maintains the same colour lineage and growth characteristics as the parent colony, though natural variation in branch shape and colour intensity may occur between individual frags.
Each frag is prepared with:
• Fresh cut from established mother colony
• Healthy tissue and active growth tips
• Securely mounted frag plug or base
• Proven colour stability under reef LED lighting
🍽️ Care & Feeding
Like most Acropora, Emerald Crown Cerealis relies primarily on photosynthesis but benefits from nutrient-balanced reef environments and occasional coral feeding.
Recommended feeding:
• Fine plankton blends or powdered coral foods
• Amino acid supplements for SPS systems
• Broadcast feeding 1–2× weekly
📈 Optimal Parameters
Parameter | Ideal Range
Alkalinity (dKH) | 7.5–8.5
Calcium (Ca) | 420–450 ppm
Magnesium (Mg) | 1300–1400 ppm
Nitrate (NO₃) | 2–10 ppm
Phosphate (PO₄) | 0.02–0.08 ppm
📍 Placement
Place in the upper aquascape where strong lighting and turbulent water flow are present. Stable alkalinity and balanced nutrients are essential for maintaining the vibrant green body and strong purple tip coloration.
Allow sufficient space between neighbouring SPS colonies to avoid shading and support natural branching development.
💜 Acropora cerealis “Emerald Crown”
Lush emerald green with royal purple tips — a classic SPS colour contrast that brings elegance, depth and structure to any serious Acropora reef.