ID these for a noob please

[Aries]

It is me again...please bear with me as I learn my new saltwater tank.

I presume this is a clam...it is safe to have??




Next, what is the green stuff on my rocks (in my sump)? Is it bad? I will have a clean up crew tomorrow to help with the brown algae, will they eat this too if it is bad?




This was on my rock when I bought it, it is bad, should I remove it?




Finally, what is this on my rock?





Thanks so much for any help!!!!!! I am learning so much with his new saltwater tank. Please bear with me.

Aries

 

[NapoliNewJersey]

1ST The clam is fine to have ... cute too
2ND Is some sort of MacroAlgae
3RD looks like hair algae .. if it grows/spreads you can take the rock out and scub it off
4th I have no idea but maybe some sorta sponge.

 

[Aries]

Bump - any other ideas on the last one?

Thanks

Aries

 

[FreddytheFish]

A sponge would be my guess.

 

[Fishieness]

can you please get a larger pic of the last two?
i cant make them out very well.

 

[Aries]

can you please get a larger pic of the last two?
i cant make them out very well.

Sure no problem. Actually, that is as large as I can get, at least with MY cameras. It is a cropped 2048x1536 in Macro mode.

Aries