Heteractis Anemone (Heteractis spp.)
Heteractis anemones are striking and charismatic reef inhabitants known for their flowing tentacles and natural symbiotic relationship with clownfish. These anemones create a beautiful focal point within the aquarium, with their tentacles gently waving in the current and providing a natural hosting environment for compatible clownfish species.
 
Colour & Appearance
Heteractis anemones are commonly found in vibrant shades of greens, purples, creams and browns, often with contrasting tentacle tips. Under strong reef lighting, their colours can appear even more vivid, and the tentacles can display subtle fluorescence. When fully expanded, they form a large, graceful display that adds both movement and natural reef character to the aquarium.
 
Placement & Flow Requirements
Heteractis anemones thrive under moderate to high lighting and moderate, indirect water flow. They prefer stable rockwork or sandy areas where they can attach securely.  strong, direct flow which may cause them to move in search of a more suitable location.
 
Care Level & Compatibility
Best suited to stable, mature reef aquariums, Heteractis anemones benefit from strong lighting and good water quality. They may host clownfish species and can become the centre of activity within the aquarium. Adequate space should be provided, as anemones can expand significantly.
 
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 flowing tentacles, vibrant colouration and potential clownfish hosting behaviour, Heteractis anemones bring natural beauty and dynamic movement to established reef aquariums.