Should I be excited

[Waynage01]

Anyone able to tell what this is. It's green and purple looking.
My first sw tank. I put me live rock and live sand in today. Have been sitting for ages looking for things. I have seen 4 very small crabs but can't get a good picture.


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[Venom_]

Looks like branching coralline algae but I can't tell.

 

[Waynage01]

Thanks for the reply. Am brand new to sw. If it is a branching coralline algae is it ok to stay in the tank


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