Help with ID please

[2reefs]

I had those in my aquarium for the past 5 years on 1 rock suddenly they are on sevral rocks, Anyone know what they are?They are the size of a quarter or bigger.

 

[pauliwalnuts]

Duncans/Denros

 

[jr973]

Look like big a$$ palys to me

 

[ryangrieder]

Show us pics when they are closed so we can see the base.

 

[2reefs]

Will post more pictures. To me they look more some kind of anemone. They move I will try to find on that is on the glass and will take a picture. The funny part is that the picture of the one of the rocks are the original and none have moved.

 

[fishman1069]

From the pic above it looks like Duncans, but if they are moving around they have to be some kind of anemone or shroom!

 

[Levito]

definitely duncans. given the right conditions, they can grow like wildfire.

 

[2reefs]

couple of pictures

 

[reefboys]

There not duncans or denros there like a anemone or like a shroom like fishman1069 said,keep your eye on them,they can spread like a wildfire.

 

[waynotcars]

Majano anenomes. Not good. Get rid of them