help identify please!!

[mutateddogbone]

well today i just notice some sort of slug or nudibranch that just appeared in the tank today. he is white with frills along his side and 2 stalks on the top of his head with bristles or frills coming out of them. the tank has been setup for almost 4 months and this is the first time ive seen him. i have some star polyps and yellow polyps and some other polyps which i dont know what kind they are. he doesnt seem to be bothering anybody just would like to know what he is

here is him next to a 4" long purple firefish for reference to size

 

[greenbean36191]

It's Tritoniopsis elegans. It feeds on leathers.

 

[mutateddogbone]

so should i get rid of him? i had a colt coral in my tank not too long ago and branches of it started falling off until the whole thing came detached. the polyps were out but i couldnt figure out what was goin on. come to think of it he showed up not too long after the colt died.. you think he could have been the cause?

 

[chrisstie]

If thats what he feeds on it sounds like a very probable cause for the colts death- most leathers I've kept grow like weeds. I wouldn't mind using him to mow down some kenya tree i have if he'd eat it.

If it were me - i like inverts like that - i'd feed him leathers so i could keep him cause i'm weird

 

[mutateddogbone]

well i want to have leathers in the future and the little guys are really attracitive but they just had to go. so after this post i spent about an hour moving every rock looking for them and removing them. i ended up finding 5 of them along with about 10 spiral shaped egg deposits on the back glass and rocks so i siphoned out all the eggs i could and scrubbed the rock with a toothbrush and fresh water... hopefully i got rid of them.


and in the future i will be using an iodine dip for all incoming corals to my tank!