Help identify this hitchhiker.

[troyrb]

I started a refugium on my tank a couple months ago. A couple weeks ago I noticed this green thing in the refugium now today I see that he some how got in side my main tank. He doesn't seem to be hurting any thing but I would like to know what it is and if I should be worried at all. Any ideas?

[ January 26, 2002: Message edited by: troyrb ]</p>

 

[coralite1]

juvenile algae eating green frilly nudibranch, Tridachia crispata

 

[Anonymous]

It looks like some type of sea hare to me. Can you get a better picture?

RR

 

[troyrb]

I will see if I can get a better picture today. I already have one green frilly nudibranch in the tank and it doesn't really look like this thing. The nudibranch is about half its size and this thing has spikes on it not frills. But I could be wrong maybe it is a nudibranch just different looking then most.