Critter ID

[mrvn]

Hi everyone,
Can somebody help me to identify this critter under the head of the hammer? I'm not sure if it harmful. Also I've seen something coming from under my trachyphyllia, I hope someone can help me identify it. Sorry for the burry pictures my my LEDs interfere with phone camera.
Thanks,

 

[Diesel]

I can see it but can't figure it out.
Does it move when you touch it or so?











[HASHTAG]#reefsquad[/HASHTAG]

 

[smh254]

Maybe pineapple sponge

 

[Lionfish Lair]

It's a pineapple sponge.

 

[mrvn]

Should I leave them in the tank or should I take them out?

 

[smh254]

They are fine just leave them be

 

[Lionfish Lair]

You can leave them in or pluck them off. They're not bad in themselves and make for an interesting part of the little ecosystem, but sometimes they kind of get heavy in numbers.

 

[mrvn]

You can leave them in or pluck them off. They're not bad in themselves and make for an interesting part of the little ecosystem, but sometimes they kind of get heavy in numbers.

Are there any fish that eat them? I know angels eat sponges but would a flame angel eat it?

 

[Lionfish Lair]

I wouldn't plan a stocking list around those couple of sponges.

 

[mrvn]

Thank you everyone!