Black Substance Spreading

[mtp]

RC Folks,

I have a black substance beginning to spread on some of my live rock. It looks like tar but it is not sticky when you touch it. It peels off when you pick at it with you finger nail.

Does anyone have an idea what this might be and how I should deal with it?

Thanks, Mike

 

[WLachnit]

Sponge or tunicate maybe ?? Pics are he

 

[WLachnit]

Double post

 

[mtp]

Black Substance Image

Black Substance Image

 

[vetdog]

I had the same. I think it is a sponge

 

[mtp]

How did you remove it?

 

[RetroAndreas]

"I have a black substance beginning to spread on some of my live rock. It looks like tar but it is not sticky when you touch it. It peels off when you pick at it with you finger nail."


Skin of Evil

Anyone else here remember that episode from Star Trek TNG?


but most likely a sponge