No idea.

[BellaCoop]

i was moving stuff around in my tank yesterday and when I moved my mushroom rock and noticed this on the back. Iv has this rock for a while now and never noticed it before. Any idea what it is?
#reefsquad

 

[TheEngineer]

Majano. Aiptasia x or feeding it kalk paste should do it.

 

[cloak]

Majano Anemone.

 

[4FordFamily]

Looks like a majano anemone to me... whatever you do don’t try to dig it out or smash it. It just makes them mad enough to reproduce exponentially!

 

[saltyhog]

Agree with cloak. Not as prolific or likely to become a pest as aiptasia is. Some of them are very pretty.

 

[DSC reef]

Agree with manjano pest anemone.

 

[BellaCoop]

So try to get ride of it? I was just reading more about it and some love them.

 

[4FordFamily]

I hated mine they took over my tank very quickly. I found them to proliferate faster than my aiptasia.

 

[BellaCoop]

What’s the best way to get rid of it safely?
I’m concidering just tossing the mushroom rock out. It’s keeps having things pop up on it.

 

[DSC reef]

If you want to keep the mushroom you could remove them from the rock instead of risking an outbreak by messing with the Manjano. Also, if you have a LFS nearby they might take the entire rock with the mushrooms and give you some credit. Just a couple ideas.

 

[dbl]

Agreed with @DSC reef. If you want to keep the shrooms, try to take them off the rock and toss the rest, versus trying to remove the manjano.

 

[4FordFamily]

You could also break the rock and any piece the majano touched should be chipped off.

 

[dbl]

You could also break the rock and any piece the majano touched should be chipped off.

And yet another good option.

 

[MikeW9788]

Get rid of it, my last tank was overrun and ruined by them. They kill corals, clams , and anything else they touch. I'm sorry but anybody that likes these has no clue what they are doing.