Any idea what is growing on my Australian live rock?

[FreshSaltyGuy]

So today I see this which is awesome, and daily I'm finding new stuff. Wondering what this is so I can see what it will look like when it gets bigger. It's also growing ulside down on the rock is that ok?

 

[FreshSaltyGuy]

There is also this one way in the back. Sorry it's not very clear.

 

[Sharkbait19]

Looks like it’s some sort of sponge or algae - nothing harmful.

 

[Tamberav]

Does it feel hard or soft?

 

[fish farmer]

If it is hard I think it is a foraminifera. I used to see lots of red ones on Pacific live rock.

 

[FreshSaltyGuy]

If it is hard I think it is a foraminifera. I used to see lots of red ones on Pacific live rock.

Haven't touched it but looks hard.

 

[FreshSaltyGuy]

What are the little bubbles coming off of it? They seem to come out when light comes on.

 

[Tamberav]

If it is hard I think it is a foraminifera. I used to see lots of red ones on Pacific live rock.

Ty! This is what I was thinking also but forgot the name for it.

 

[Tamberav]

What are the little bubbles coming off of it? They seem to come out when light comes on.

Probably oxygen then... Something respiring

 

[FreshSaltyGuy]

So how big does this thing get is it a fast or slow grower? Etc..

 

[fish farmer]

So how big does this thing get is it a fast or slow grower? Etc..

Pretty slow and usually stay small like than a 1/4 inch, but I did have a nice "show sized colony" in a crevice of a piece of Fiji rock which was thumb sized....I thought I had scored some really cool coral.

 

[FreshSaltyGuy]

Pretty slow and usually stay small like than a 1/4 inch, but I did have a nice "show sized colony" in a crevice of a piece of Fiji rock which was thumb sized....I thought I had scored some really cool coral.

ahh ok gotcha. At least it's not a bad thing and it just adds to the viewing pleasure even if it does stay small.