Purple Planet Acropora: The Deep Purple Plater
The Purple Planet Acropora (Acropora species, widely recognized as a strain of A. efflorescens or similar plating/encrusting forms) is an extremely famous and highly coveted Small Polyp Stony (SPS) coral in the reef aquarium hobby. This classic collector strain is celebrated for its deep, saturated metallic purple to eggplant-colored base which beautifully contrasts with striking neon green or sometimes yellow polyps.
The Purple Planet typically grows in a low, encrusting and then thick, plating or tabling morphology. Achieving and maintaining its intense purple coloration is a true test of an aquarist’s skill, as the color relies on specific non-fluorescent pigmentation driven by ultra-low nutrient levels (ULNS) and high-intensity lighting.
| Key Features | Details |
|---|---|
| Species | Acropora species (A. efflorescens or similar) |
| Growth Morphology | Encrusting, then plating or tabling |
| Coloration | Deep metallic purple to eggplant; neon green or yellow polyps |
| Lighting Requirement | High-intensity lighting |
| Nutrient Requirement | Ultra-low nutrient levels (ULNS) |
FAQ
What lighting conditions are required for Purple Planet Acropora to maintain its color?
High-intensity lighting is essential for maintaining the deep purple coloration. The coral relies on strong light to support its non-fluorescent pigmentation.
Can Purple Planet Acropora grow in standard reef aquarium setups?
No, it requires ultra-low nutrient levels (ULNS) and high-intensity lighting, which are not typically found in standard reef setups. Specialized water parameters and equipment are needed.
Is the purple coloration stable over time?
The coloration is stable when maintained under proper conditions, including ULNS and high-intensity lighting. Any deviation in water quality or lighting may cause fading.

Dylan Bailey –
After months of careful setup, the Purple Planet finally bloomed with its deep purple base and vibrant green polyps. It’s a stunning addition to my reef tank. I had to adjust my lighting and reduce nutrients, but it’s worth every effort.
Joshua Lyman –
The coral looks beautiful once it settles. I noticed it took several weeks to show color, and I had to monitor water parameters closely. Now it’s a centerpiece in my tank.
Katherine Bower –
This is one of the most visually striking SPS corals I’ve ever seen. The contrast between the purple base and green polyps is incredible. I’ve read about the difficulty in maintaining it, and I can confirm it’s a challenge, but absolutely rewarding.