⚠ EATS FISH & SHRIMP
The Elephant Ear Mushroom can fold its large disc over and engulf fish, shrimp, and other tank mates that rest on or near it. Do not keep it with small or bottom-resting fish. This is a predatory corallimorph, not a typical peaceful mushroom.
Amplexidiscus fenestrafer
| Care Level | Easy — but predatory |
| Lighting | Low to moderate |
| Water Flow | Low to moderate |
| Placement | Low rock or sand |
| Aggression | Predatory — eats fish/shrimp |
| Coloration | Tan, green, gray large disc |
Overview
The Elephant Ear Mushroom is a very large corallimorph — a single disc can exceed 12 inches. Hardy and easy to keep, but it is a predator: it folds its disc into a funnel to trap and digest fish and shrimp that settle on it. A fascinating oddity, but only for tanks without small or bottom-resting tank mates.
Care & Placement
Give low-to-moderate light and gentle flow. Place low on rock or sand where it has room to expand its huge disc — and where no small fish or shrimp will rest on it. It can move to a spot it prefers.
Feeding
Photosynthetic, but it actively captures prey — it will eat fish, shrimp, and meaty foods it engulfs. You can offer it chunks of meaty food, but its main “feeding” concern is what it catches on its own.
Propagation
Frag by cutting through the mouth like other mushrooms; each piece regenerates.
Cautions
PREDATORY — folds over and engulfs fish and shrimp, especially at night or when they sleep on it. Never keep with small fish, gobies, or ornamental shrimp. Otherwise hardy and easy.