Subwassertang looking algae

[sayurasem]

Hello, I need help on identifying an algae. I’m new to saltwater and I can’t find the type of algae I have in my tank. The algae looks like a freshwater plant called subwassertang and it has green-blue color.

My tank is 3 months old and going through the ugly stage. Also it seems like I have dino and cyano in my tank.

 

[WheatToast]

It's hard to tell from the camera angle, but the algae looks like Dictyota, a brown macroalgae that may feature a blue iridescence. Many species of Dictyota are pests as they can take over rockwork and clog pumps when they are torn:
https://www.marineplantbook.com/marinebookdictoya.htm
https://www.reefcleaners.org/nuisance-algae-id-guide

With iridescence:

Without iridescence:

 

[sayurasem]

It's hard to tell from the camera angle, but the algae looks like Dictyota, a brown macroalgae that may feature a blue iridescence. Many species of Dictyota are pests as they can take over rockwork and clog pumps when they are torn:
https://www.marineplantbook.com/marinebookdictoya.htm
https://www.reefcleaners.org/nuisance-algae-id-guide

With iridescence:

Without iridescence:

Yes this is it! Thank you! I made a mistake of brushing it off my rock and now it’s spreading little leafs everywhere.