Common name: Sacoglossans

Sacoglossa, commonly known as sacoglossans or sap-sucking slugs, is an order of small, often colorful sea slugs. These gastropods are known for their unique feeding habits, as they consume and then retain chloroplasts from algae in a process called kleptoplasty. This allows them to photosynthesize like plants, a rare ability in the animal kingdom. Sacoglossans are fascinating for reefkeepers due to their specialized diets and potential benefits in controlling certain types of algae in the aquarium. However, their specific dietary requirements can make them challenging to keep.

1. 
   Common name: lettuce slug

   Scientific name: Elysia crispata
2. 
   Common name: Eastern Pacific Emerald Elysia

   Scientific name: Elysia diomedea
3. 
   Common name: lettuce slug

   Scientific name: Elysia ornata
4. 
   Common name: Sapsucking Slug

   Scientific name: Elysia verrucosa
5. 
   Common name: green elysia

   Scientific name: Elysia viridis
6. Common name: Ercolania boodleae

   Scientific name: Ercolania boodleae
7. 
   Common name: Flat camouflaged slug

   Scientific name: Plakobranchus ocellatus
8. 
   Common name: Thuridilla gracilis

   Scientific name: Thuridilla gracilis