ID Please

[42un81]

Can anyone help me on an ID of this critter on my polyps?

 

[Ding2daDong]

Looks like some type of anemone, majano, or aptasia. I would get rid of it

-Matthew

 

[chinoxl3]

It's called a cup coral. I have tons of them in my tank and they are harmless. I wouldn't worry. Aiptesia's have pointy tentacles and majanos are green in color.


http://www.english-nature.org.uk/virtualtours/Lundy/Lundy_devonshirecc.htm

 

[ReefWreak]

I was going to say cup coral, however I don't see a calcerous base on it. I've got millions of cup corals in my 120, however they all are very close to their calcium skeleton, never being more outward than a candycane/trumpet coral, just with longer tentacles.

 

[FishAffair]

Looks like an orange ball sponge to me.

 

[42un81]

This is pretty close, Club Tipped Anemone.

 

[scubasteve247]

hmm, id have to say its a orange ball colimorph, we have one in the show tank at exotic aquatic, but youll never see it, if you come by ask kyle josh or andy and we can show you, its a type of mushroom, but there is also a anemone that looks identicle and as youve seen the photo the cup coral can look very similar as well, its hard to tell from that angel, does it have a stony base?

 

[42un81]

No the base is transparent. I removed a rock and there it was I've never seen anything like it in the tank before.
It looks pretty cool when the lights go out.

 

[pedromatic]

Looks like a collimorph. I have many in my tanks that look like this.

Very small, the largest the size of a quarter. Transparent except for the round white tips of the tentacles. The base (foot) looks like an anemone, not stony. There's one attached to the glass in my fuge. They catch pods and whatever floats by.