Strange Growth On Top Of Orange Linkia Sea Star

[firstborn]

I have my Orange Linkia in a quarantine tank right now. I am treating my DT with Hypo for Ich.
I noticed a green "thing" coming out of the top of a small hole. Is this the Linkia passing waste? If not, does anyone have any idea what it may be?
Thanks

 

[fish3]

no clue let me know though

 

[ophiura]

I would like to see a picture. I will say, it does not sound good.
How long have you had it? What are the water parameters?

 

[firstborn]

Originally Posted by ophiura
I would like to see a picture. I will say, it does not sound good.
How long have you had it? What are the water parameters?
I have had it about a month. The growth is gone, but there are now darker spots covering the Linkia? It is still moving around and is not disintegrating. Do you know what these darker spots may be?
Thanks