What kind of algae are these?

[Dkmoo]

my tank been pretty good with algae overall but curious about this ID. Its not out of control "yet" but also no CUC seem to touch it.

I can tweezer it out fairly easily but many hard spots. And I really don't want to take my fuge apart again to start another round of vibrant.

 

[vetteguy53081]

Valonia which is a type of bubble algae. There are a few different types of bubble algae, each one forming a slightly different shaped bubble. Although the size and shade of green of the bubble may vary, you cannot mistake bubble algae for any other type of algae. There will not be any other parts to this algae, only green little bubbles. It will start as one green bubble sitting in your tank. A single standalone bubble ranging in size from a marble to a small ball about ¼ the size of a marble. Within a few days to a week, there will be a few more bubbles, in a few more days there will be some more bubbles, and so on and so on. Inside those bubbles are thousands of spores. If you break open one of those bubbles, the spores will be released and you could have a pretty big outbreak on your hands. . If you can carefully and manually remove these bubbles as you see them, you will never have a serious problem. Bubble algae will grow best on your rocks.

 

[Dkmoo]

Thank you @vetteguy53081 !

Did not realize bubble algae can look like that!

Do you know anything that eats it? The emerald crab doesn't seem to touch it, nor any of my other CUC.

I still got vibrant left but I just reestablished my fuge so be a shame to take that apart again...

 

[vetteguy53081]

Thank you @vetteguy53081 !

Did not realize bubble algae can look like that!

Do you know anything that eats it? The emerald crab doesn't seem to touch it, nor any of my other CUC.

I still got vibrant left but I just reestablished my fuge so be a shame to take that apart again...

rabbit fish do. You can also take a rag and cut it into squares and grab the bubbles and gently wiggle loose and discard in the garbage.

 

[Chaseon]

Thank you @vetteguy53081 !

Did not realize bubble algae can look like that!

Do you know anything that eats it? The emerald crab doesn't seem to touch it, nor any of my other CUC.

I still got vibrant left but I just reestablished my fuge so be a shame to take that apart again...

Mithrax crabs will DEMOLISH bubble algae!

 

[Dkmoo]

Mithrax crabs will DEMOLISH bubble algae!

I have one, doesnt touch it. They seem to be effective against Valonia ventricosa..not valonia fastigiata, which seem to be what I have, from googling.