ID Please

[you&me]

I dont know what it is can you ID please

 

[c0mf0rt]

The first one looks like a mushroom coral.... and the second looks like a barnacle... if it's alive now it probably won't last long.... no problems though.....

 

[you&me]

The first one looks like a mushroom coral.... and the second looks like a barnacle... if it's alive now it probably won't last long.... no problems though.....

some how clam come from nowere and It's been with me for about 4 months It was tiny but keep growing bigger and yes He/she is live some time on the glass some time on the rock some time I see that thing one the skimmer.


If it is mushroom coral how big do they grow?

 

[you&me]

The first one looks like a mushroom coral.... and the second looks like a barnacle... if it's alive now it probably won't last long.... no problems though.....

some how clam come from nowere and It's been with me for about 4 months It was tiny but keep growing bigger and yes He/she is live some time on the glass some time on the rock some time I see that thing one the skimmer.


If it is mushroom coral how big do they grow?

Update

the clam is bigger then the time that I post it's like black and brown and it dose open it's mouth hieding un the rock, is it this thing o,k with other stuff in my tank?