Looks bad but....

[sirmixa]

I've got these:

Any idea what they are? They look bad, like aptasia, BUT...they have a skeletal structure, so just curious if they may be a coral, hopefully not a pest

 

[cloak]

Hidden Cup corals. In most cases these aren't a problem, but definitely keep your eye on them.

 

[DeepBrew]

That looks like a nonphotosynthetic stony coral to me. As far as I know they're not pests. Maybe something like this:

http://www.sms.si.edu/irlspec/Phylla_americ.htm

I've had a few on live rock from the Gulf of Mexico that didn't cause any problems.

 

[RyanSweet]

Type of pseudocorynactis. Pretty cool little things.

 

[Macdaddynick1]

Balanos

 

[Gabriel_115]

Hi All,

I've been trying to find out what exactly these are... I've searched some lists of pests within the forum but maybe I'm missing something. Can someone assist with me with determining if these are pests or not? I've received mixed info so far.

View attachment 20161016_180254.jpg

View attachment 20161016_180324.jpg

View attachment 20161016_180435.jpg

View attachment 20161016_180519.jpg

 

[cloak]

Hi All,

I've been trying to find out what exactly these are... I've searched some lists of pests within the forum but maybe I'm missing something. Can someone assist with me with determining if these are pests or not? I've received mixed info so far.

View attachment 20161016_180254.jpg

View attachment 20161016_180324.jpg

View attachment 20161016_180435.jpg

View attachment 20161016_180519.jpg

These look more like Ball-tipped anemones.

http://www.advancedaquarist.com/2002/10/inverts

 

[sirmixa]

Orange ball anemones is what someone on my local forum suggested and they are most similar in appearance to those, but mine seem to have a skeletal base

 

[RyanSweet]

They are pseudocorynactis. Commonly referred to as ball anemones or orange ball anemones. They are not anemones at all though and are more of a stony coral.

 

[sirmixa]

This is what they look like out of water. It's like a plate coral with the ridges and they have Stoney short tubes, like a short hammer coral stem

 

[sirmixa]

They are pseudocorynactis. Commonly referred to as ball anemones or orange ball anemones. They are not anemones at all though and are more of a stony coral.

That seems to be the most accurate ID of these things