Crazy looking hitchhiker, what is this??

[Nanoreef523]

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Just noticed this guy on the backside of my live rock. I couldn't get a good shot of it cause of the angle. What is this thing? It's pretty cool looking

 

[redfishbluefish]

The photos aren't the best, but my first guess is a nudibranch.

 

[Nanoreef523]

The photos aren't the best, but my first guess is a nudibranch.

Is it harmful?

 

[redfishbluefish]

Is it harmful?

Most of the nudi's I know are not good....they tend to be the same color as the coral they are eating. Actually, and I say this as not overly educated with nudi's, the only nudi I know that is reef safe is the Berghia nudibranch.

 

[Shep]

Better ics would help a lot but it does look like a nudi of some kind

 

[4FordFamily]

I'm not a nudi expert but this is a nudibranch

 

[jasonandsarah]

There's a few reef safe naudibranchs but I don't recognize this one so i'd say catch it while you can.