What are thoossseee?

[QuickSwitchReef]

No actually, what are these. I picked up some coral from a guy on fb marketplace and he had a whole bunch of these corals. He told me they were just mushrooms that grow like crazy. He gave me a couple with the coral I purchased for no extra charge. After a couple months these things have spread everywhere unlike any coral I know.

I have red and green versions and they grab on the rock like an anemone. I’ve tried to I’d these on google lens but I get different answers every time ranging from aptasia, to duncans, to long tentacle anemones. When I purchased I thought they were pest mushrooms, but not I think they are some type pest anemone. Can someone help ID these guys and share any experience with handling them?

 

[JarheadPilot]

They are Aptasia, pest.

File fish, peppermint shrimp will eat them. Lots of info all over the place on how to remove.

Good luck.

 

[vcnt]

Maybe Majano Anemones?

How To Get Rid Of Majano

Majano are a small clear blueish anemone found in reef tanks, sometimes with round or bubbled tips. They spawn easily and spread throughout the system quickly.

reefstable.com

They look like this

 

[vcnt]

They are Aptasia, pest.

Are you sure?
Atleast, to me, they look more like Majanos.
OP's photos show a green and somewhat bubbled look, textbook of Majanos

 

[QuickSwitchReef]

They are Aptasia, pest.

Are you sure?
Atleast, to me, they look more like Majanos.
OP's photos show a green and somewhat bubbled look, textbook of Majanos

That’s what they looked like when they were smaller. As they get larger they start looking more like a nem.

 

[vcnt]

That’s what they looked like when they were smaller. As they get larger they start looking more like a nem.

Majanoes are anemones?

 

[EnterName]

Those are not Aiptasia. Aiptasia are smaller, usually brown/grey, and often semi transparent. Their tentacles are pointy not rounded.

You can treat pretty much all unwanted corals with products like AiptasiaX or Arka/MicrobeLift Aip-Away. In my experience Aip-Away works better for corals like mushrooms and anemones.

 

[EnterName]

That’s what they looked like when they were smaller. As they get larger they start looking more like a nem.

Majanoes are anemones?

Yes, Anemonia majano is the scientific name.

 

[vcnt]

Yes, Anemonia majano is the scientific name.

Oh yes, I know that, but OP's comment confused me, the "as they grown larger looked more like a nem," because they are anemones

 

[JumboShrimp]

The seller told you they were mushroom Shame, shame, shame on him.

 

[QuickSwitchReef]

Yea, when they were smaller they looked like mushrooms, as they gotten bigger they have long tentacles and a foot just like a nem. I was seeing recession in my corals where these “mushrooms” were and that’s when I noticed the resemblance to a nem. I figured they were some kind of nem but I was hoping you guys would ID it as a harmless coral. I guess not lol. I’ll deal with them slowly, that are very beautiful and almost resemble gsp in large quantities.