ID? I don’t know what it is

[Arricefe]

This “stuff” started growing on a Dino egg frag I have and now is is growing on the plug of another frag. Any ideas as to what it is?

 

[Arricefe]

It’s not an emergency but can anybody from the #reefsquad ID those polyps? TIA.

 

[ScottB]

Tough to say from those pics. Google "red bubble algae" images to see if it matches.
gobble gobble!

 

[Softhammer]

You’ve got Poccilopora, at least on the dying frag on a plug. Let em grow! They frequently bail out polyps and can grow everywhere. Some regard as a pest SPS, I happen to like them.

 

[Arricefe]

You’ve got Poccilopora, at least on the dying frag on a plug. Let em grow! They frequently bail out polyps and can grow everywhere. Some regard as a pest SPS, I happen to like them.

I think you got it! I had a frag in that tank and I have a colony in a different tank.

 

[samnaz]

+1 pocillopora

 

[rkpetersen]

I'm not convinced that it's pocillopora, although I don't know what it actually is.
But it's true that poci's can be like cancer in your aquarium, metastasizing everywhere and harming other corals.

Here's a poci implant that appeared in one of my tanks (the only one I haven't removed yet, out of dozens.)
You can see it doesn't really look entirely like OP's. I put an acan echinata frag there next to it in the hope that it would kill the poci (like echinatas kill almost everything else they touch), but so far, they're co-existing, much to my annoyance.