Amplexidiscus
Amplexidiscus fenestraferSpecies
A giant corallimorph mushroom reaching 30 cm across. Hardy, but engulfs and eats small fish and shrimp at night — stock with caution.

Names & Synonyms
- CommonAmplexidiscus
- Commonアンプレキシディスカス
- CommonElephant Ear Mushroom
- Commonエレファントイヤーマッシュルーム
Overview
Amplexidiscus is a very large corallimorph mushroom that, in addition to photosynthesis, closes its disc at night to engulf and eat small fish and shrimp. It is hardy and easy to keep, but predation accidents occur when housed with small fish or shrimp, so mind placement and tankmates. It prefers low-to-moderate light and gentle flow and settles well placed singly in a rock depression.
Care Points
- Preys on small fish and shrimp at night; choose tankmates carefully.
Related corals of the same type
Pseudocorynactisオレンジボールアネモネ(プセウドコリナクティス)corallimorphIntermediateA nocturnal corallimorph with orange balls at its tentacle tips. Highly sticky and can capture and eat small fish.
Rhodactisバウンスマッシュルーム(ロドアクティス)corallimorphIntermediateA corallimorph mushroom with inflated bubble-like vesicles. 'Bounce' specimens command high prices among collectors.
Ricordea yumaリコーデア・ユマcorallimorphIntermediateA Pacific Ricordea corallimorph with larger vesicles and vivid multicolor. More three-dimensional than the Florida species.Related care articles

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