Please help something wrong with paly

[Jyetman]

These guys are almost eight months old and have been doing great. This one green paly near the top has something wrong not sure what's starting to cover it. When I touch it doesn't react tried scraping that crusty stuff off no luck. Was healthy last week. Looks like something grey is growing and covering it any advice would be appreciated.

 

[Jyetman]

Tried pulling it off with tweezers and in seconds it nearly covered the entire paly. Seems like the discoloration is part of the paly not sure what to think now? Does anyone have any idea what's going on here?

 

[650-IS350]

Sponge?

 

[Jyetman]

Sponge?

Don't think so.

 

[Jyetman]

Wow nobody knows huh!

 

[650-IS350]

are you sure that's growth on the polyp not the polyp colors bleeding in to the disk?

 

[Jyetman]

It looks like a sponge now that I looked closer how can that be?

 

[650-IS350]

if its growing on it, just rip off the sponge.

 

[Jyetman]

if its growing on it, just rip off the sponge.

I tried it won't come off but when bending the polyp that grey stuff was thick and covering the stalk.

 

[Jyetman]

Whatever happened after all this time its health has rejuvenated and has started to open up again is very strange.

 

[Jyetman]

By the way does anyone know the names of these two types?

 

[g0rilla]

100% sponge