Giant Mushroom Anemone (Amplexidiscus fenestrafer)

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Giant Mushroom Anemone

Amplexidiscus fenestrafer-3165.jpg
Giant Mushroom Anemone

Amplexidiscus fenestrafer

379 Litres (100 US G.)

25.4-30.5cm (10-12 ")


8.1 - 8.4

23 -25 °C (73.4-77°F)

8-18 °d

Live Foods
Other (See article)

12-25 years

Alternative names[edit]

Giant Cup Mushroom Coral, Giant Disc Anemone, Giant Mushroom Anemone, Giant Flower Coral, Large Elephant Ear, Giant Coral Anemone, Pizza Anemone


This anemone is hermaphroditic. It reproduces typically by pedal laceration or budding, but fission is occasional.

Tank compatibility[edit]

Best kept in a species tank or carefully with other corals as this anemone will eat fish. Fish will usually learn to avoid the anemone, but it will always be a risk.


This anemone will actively eat fish if they're available by forming a ball around them so they are unable to escape. In captivity it should be fed large meals of Artemia and other plankton-like foods. It also receives some of its nutritional requirements from the symbiotic algae zooxanthellae.

Feeding regime[edit]

Feed once a day.

Environment Specifics[edit]

Due to its tendency to eat fish, it's best kept in a large tank without fish and with a sandy substrate and large rocks. Medium light levels with low current is preferred.


A fish-eating anemone.


A distinctive anemone, it has a very wide flat tentacle base which, when open, does resemble a pizza, giving rise to one of its common names. It is capable of folding this up like a ball when a fish brushes past. Colour forms include green, brown and tan.


External links[edit]