- Alkalinity: 8-12 dKH - Calcium: 350-450 ppm - pH: 8.1-8.4 - Temperature: 72-78°F - Difficulty level: Moderate to challenging - Description: Fox Coral, also known as Fox Tail Coral or Acropora foxii, is a striking, fast-growing coral species. It features delicate, feathery tentacles and vibrant colors. Fox Coral requires precise water parameters, high lighting, and moderate to strong water flow. Regular pruning is necessary to maintain its shape and promote healthy growth, making it ideal for experienced aquarists seeking a dynamic display.