🌟 Green Fluffy Black Rhodacthis
Rhodactis sp. (Green & Black Morph)
Quick Stats
Care Level: Easy to Moderate
Temperament: Semi-aggressive
Colour Form: Fluffy, vibrant green polyps with deep black centers, creating a bold and eye-catching contrast. Under actinic lighting, the green appears to glow while the black centers add depth and texture to each polyp.
Water Conditions: 24–27 °C, dKH 8–11, pH 8.0–8.4, SG 1.024–1.026
Family: Discosomatidae
Lighting: Low to moderate
Supplements: Calcium, Magnesium, Trace Elements (optional)
Water Flow: Low, gentle pulses
Placement: Lower reef zones, on rock ledges or sandy substrate
🧬 Overview
The Green Fluffy Black Rhodactis is a hardy and visually striking mushroom coral that adds vibrant color and texture to any reef. Its fluffy polyps expand fully under gentle flow, creating a dynamic effect. This coral thrives in stable, low-stress conditions and is suitable for both beginner and experienced aquarists.
🍽️ Care & Feeding
Primarily photosynthetic, but benefits from occasional feeding of micro-plankton, phytoplankton, or finely powdered coral foods 1–2 times per week. Feeding encourages full polyp extension and enhances the contrast between green and black.
⚠️ Note: Rhodactis have mild stinging capabilities; provide spacing if near other sensitive corals.
📈 Optimal Parameters
-
Alkalinity (dKH): 8–11
-
Calcium (Ca): 420–460 ppm
-
Magnesium (Mg): 1250–1350 ppm
-
Nitrate (NO₃): 2–10 ppm
-
Phosphate (PO₄): 0.01–0.05 ppm
📍 Placement
Attach to stable rock or sandbed in lower reef zones. Low to moderate lighting will make the green “fluffy” polyps glow while the black centers add striking contrast, creating a captivating focal point.
📸 Note on Photos
Photos are for illustration purposes only — each coral is unique and may vary slightly in color, pattern, and size.