Lettuce Nudibranch

(Reef: Yes)(Grows to- 2.5")  They are not true nudibranchs but are commonly called one. They are algae grazers that will encorporate the chlororplasts (organ where photosynthesis happens) into their tissue, thus themselves becoming at least partially photosynthetic.  Should not be housed with any animals that may pick at them.  Will scurry over live rock eating algae. (Elysia crispata)