Ultra Grade Colour & Appearance
These Ultra Rock Flower Anemones represent premium specimens selected for their exceptional colouration and pattern definition. Ultra varieties often display intense combinations of vibrant reds, oranges, greens, purples and metallic tones, frequently with glowing mouths and contrasting rings across the disc.
 
Under blue spectrum lighting, their pigments fluoresce brilliantly, creating a dramatic and eye-catching display that immediately stands out within the aquarium.
 
Rock Flower Anemone (Phymanthus crucifer)
Rock Flower Anemones (Phymanthus crucifer) are beautiful and colourful marine invertebrates prized for their vibrant patterns and ease of care. Unlike many other anemone species, they remain relatively stationary once settled, making them a popular and manageable choice for reef aquariums.
 
Colour & Appearance
Rock Flower Anemones display an incredible variety of colours and patterns, often featuring combinations of bright reds, oranges, greens, purples and metallic tones. Their disc is typically covered in intricate markings and contrasting rings, while the outer tentacles form a delicate “flower-like” shape that gives them their name. Under blue spectrum lighting, many specimens display striking fluorescence.
 
Placement & Flow Requirements
Phymanthus crucifer thrive under moderate lighting and gentle to moderate water flow. They often settle into rock crevices or sandy areas where they can anchor their foot securely. Once established, they tend to remain in place, making them easier to manage than many other anemone species.
 
Care Level & Compatibility
Rock Flower Anemones are considered relatively hardy and suitable for stable reef aquariums. They can coexist well with many reef inhabitants when given adequate space, and they may occasionally benefit from feeding small meaty foods.
 
Water Parameters
Temperature: 24–26°C
Salinity: 1.024–1.026 SG
Alkalinity: 8–12 dKH
Calcium: 400–450 ppm
Magnesium: 1250–1350 ppm
 
Summary
With their vibrant colours, flower-like appearance and manageable care requirements, Rock Flower Anemones make a stunning and rewarding addition to reef aquariums of many sizes.