Are lettuce sea slug easy to care for?

[Subnautica]

Someone moved out of state and he broke down the tank, so I got this guy for free. He's been in my tank for 3 days though. But I'm not sure if he eats specific things or just algae. My tank is relatively new, only has a bunch of dino/cyano and diatoms. Lol

 

[Sailfinguy21]

Id get some sushi paper from the grocery store and tie it to a small rock and toss a few peices in diff spots of the tank so itll hopefully go to them and eat.

I know this specific species changes color based on the algae it eats. I have heard of them eating zoanthids too i think.

 

[VKP01]

There are two species under the term lettuce sea slug/nudibranch (elysia crispata and elysia clarki) it’s hard to tell which one this is looking from the bottom, but both eat almost exclusively briopsis. In tanks with a lot of it and good plant lights they can do really well and even reproduce, but in most cases they die fairly quickly, and if I recall correctly their lifespan isn’t super long to begin with. I had one for several months, ended up having babies in my tank but all of them died off not too long after. Super cool little guys though!

 

[VKP01]

There are two species under the term lettuce sea slug/nudibranch (elysia crispata and elysia clarki) it’s hard to tell which one this is looking from the bottom, but both eat almost exclusively briopsis. In tanks with a lot of it and good plant lights they can do really well and even reproduce, but in most cases they die fairly quickly, and if I recall correctly their lifespan isn’t super long to begin with. I had one for several months, ended up having babies in my tank but all of them died off not too long after. Super cool little guys though!

I forgot to add, they’re photosynthetic and get most of their energy from utilizing the chloroplasts in the algae as opposed to from the algae itself, so they do need good algae spectrum lighting

 

[Subnautica]

I forgot to add, they’re photosynthetic and get most of their energy from utilizing the chloroplasts in the algae as opposed to from the algae itself, so they do need good algae spectrum lighting

Too bad my tank doesn't have bryopsis so they're starving then