id please

[lisunken]

I have two growth on LR are there good or need to be remove.
Thank for any help.

 

[mandown123]

hey man,
the white thing looks like a sponge. is it this? Second image in the first row?
http://www.chucksaddiction.com/hitchsponge.html

The other thing, can you get a better picture of it? I can't tell if its a pest anemone or something cool that is not a pest.

 

[lisunken]

I will try. thank

 

[Odysi]

Looks like pineapple sponges growing.

 

[lisunken]

Thank all for the input. Sadly is melted.