Black on snails shell

[N.Sreefer]

What the heck could this be? The black on the snails shell.

 

[N.Sreefer]

Weird

 

[N.Sreefer]

Is black coralline a thing? No tinge of purple its black and thick. Never seen this before.

 

[king aiptasia]

is it growing?

 

[N.Sreefer]

is it growing?

I put it in a 5 gallon tank I had sitting around so I can watch and see if it grows its on about 25% of the snails shells and I have a ton of snails. Its really odd looks just like coralline but its pitch black.

 

[king aiptasia]

I put it in a 5 gallon tank I had sitting around so I can watch and see if it grows its on about 25% of the snails shells and I have a ton of snails. Its really odd looks just like coralline but its pitch black.

keep me posted if any growth happens