Whats fhis?

[Darylb]

What is this thing I have a few in my tank are they good or bad?

 

[Darylb]

The yellow thing

 

[Voshon247]

I can't really tell but from the looks but it might be sponges or a dieing mushroom

 

[Sniperhank]

Neither sponge or mushroom. Looks more like an aiptasia, but won't stick with this Id due to blurriness. Can you get a better pic?

 

[NarwhalLover3]

Remind me of tubastrea

 

[Voshon247]

I don't think aipista look like that and I had mushrooms and sponges looking like that before bit if you touch it with something I believe aipista will close in fast

 

[Sniperhank]

Remind me of tubastrea

Agreed, just not jumping that far on it yet.

 

[Darylb]

This is the only better pic I can do it seems to like the high flow part of the tank when my rock was somewhere else it didn't oped fully but as soon as it got better flow it opened right up

 

[Voshon247]

Looks more like a zooanthids or pallies

 

[MINItron]

Kind of looks like a lonely yellow colony polyp.

 

[Voshon247]

Kind of looks like a lonely yellow colony polyp.

Yeah it does

 

[54seaweed]

I'd lean towards a sun coral

 

[MINItron]

Could be a sun coral too. The picture is really hard to see.

 

[Darylb]

It came on my live rock as a hitchhiker

 

[Bectan01]

Try and get a better pic if you can. I would lean towards a sun coral also. I have a big colony and its awesome, it's likes the shade

 

[Darylb]

Yea mine loves the shade and moderate flow

 

[Darylb]

Best picture I have got so far

 

[MINItron]

I would say not a sun coral based on that picture. Looks more like a zoanthid polyp of some type.

 

[mr_X]

Balanophyllia would be my guess. See if it will take prepared foods....edit that...didn't see the last picture. Interesting. Looks like a yellow aptasia, though I've never seen one.

 

[Darylb]

When they retract they invert themselves if that makes any sense they pull into the rock and when I look at it they have no tenticles showing just a smooth sorta bowl shape