Any idea what this is?

[Brooks Ross]

just added this Leather to my tank, and has this little guy growing next to it... any ideas what it is? Should I remove it ?

 

[Beeman120]

Hard to get a good ID on it, but it appears to be a paly.

 

[Brooks Ross]

Bad or good?

This poisonous ?

 

[Reeferguy365]

Agreed it's a play or zoanthid. Kool freebie if you like the color.

 

[Kremis]

Bad or good?

This poisonous ?

yes almost all zoanthids / palythoas contain different amounts of palytoxin which can be harmful. there are some good stickies in the zoanthid forum about it

 

[reef lover]

That variety of paly is unlikely to contain enough toxin to hurt anything I'd say score!!