Sea slug?

Last night I saw a neon yellow critter. I think it was a sea slug...sure moved like a slug and had two antenna. It was really small, like the size of my pinky nail. It's back looked like ruffles with white edging.

Are those good or bad? I'm pretty sure I've read they are good...but didn't know if some are bad, or what.

Thanks!

 

Sounds like a nudibranch. Some are OK and some are not. I would say if you are not having problems with mysterious coral deaths then it should be OK. I think they tend to be short lived.

 

Well I just got a bunch of new coral the past couple days...so I'm thinking maybe he came in on them. Shoot! Should have taken him out...he was so cute looking...

 

It looked just like this, but bright yellow Solar-powered sea slug harnesses stolen plant genes - life - 24 November 2008 - New Scientist

 

Wow, that thing is weird! Pretty interesting though. Is it a bad guy or a keeper?

 

It is probably best to remove nudibranchs unless you bought it after much research. Hopefully it is not a coral predator.

 

Well if I see him again he can take a little trip across the room to my 37 gallon

 

Good idea

 

yeah nutis aren't fun. If i ever saw one it would go asta la byebye

 

Well, shoot! I told him how pretty he is and then watched him scoot around. That lil' jerk :

It will probably be a looooong time until I see him again, if ever.