Cup coral hitchhiker

[John3]

Thought I would share a pic of this cup coral hitchhiker that came with my live rock. I have a few of these guys scattered about. They only fully extended when it gets dark. If my parameters are spot on the little dots have more of a green glow to them. These seem pretty hardy, they are going on 18 months now.

This particular one I thought the Sunny D zoas would overtake, but these are are pretty combative themselves. I saw this one eat a zoa.

 

[sfin52]

Looks to be an anamone of some sort

 

[GK3]

Looks like aptasia

 

[John3]

They do look similar but these guys have a skeleton. During the day the tentacles mostly retract back inside it. The skeleton looks like this pic I found on the net.

 

[dantimdad]

Aptasia or glass anemone whichever you want to call it. Kill it!

 

[DSC reef]

It's not an aptasia or anemone if it has a skeleton. Very cool @John3. As it grows it may cause issues with your zoas.

 

[dantimdad]

It's not an aptasia or anemone if it has a skeleton. Very cool @John3. As it grows it may cause issues with your zoas.

Missed that part.

 

[Kelso]

nice macro pic... although I'm not familiar with that species

 

[Kremis]

Looks like a dendro

 

[John3]

Yeah I didn’t even know I had these at first but they have done nicely since my parameters have been good. I have 4 that I know of and I enjoy watching them come out at night,

I’ll try to snap a daytime pic, you can see the skeleton pretty well then.

I would think these are very slow growers. They don’t seem to grow new heads.

 

[John3]

Btw if it eats a sunny D or 10 no problem.....those zoas are truly like a weed.