Ball/sponge algae

[Ocean Drive]

Ciao,
I have strange algae on my live rocks, like sponge :doubt:
Can you help me to know the name and?
Many thanks

 

[Ocean Drive]

Someone could help me about these bubble/sponge algae?:?::?:

 

[Krish]

Going by the pictures, it doesn't look like bubble algae as the bubble algae I had in my tank looked more like a green grape. Not sure what it is, but here is a bump

 

[Ocean Drive]

Yes, it is not Valonia spp., it's like a sponge.

 

[Anthony Calfo]

pest by nature... indicative of high nutrient levels or (sometimes) heavy phyto feedings (greenwater)

Control nutrients and they will wane to a manageable level. More skimming and/or water changes... (always!) decant thawed pack juice from frozen foods (never put the chunks in whole... the juice just grows algae and sponges )