Aiptasia? And?

LagunaGlide · Apr 10, 2018

I noticed some small green polyps on a rock. Upon closer look I though likely aiptasia. I took pics under daylight and blue only. I circled them in red. Curious what the blue circled tube things are. I am thinking vermetid snail, but there is a lot of them, and the look empty....

Last pic is in my sump. I asked about these some time ago, and some folks thought coral, but they are quite large now, and I think aipasia. Thoughts?

cristata.reef · Apr 11, 2018

1st pic red circle looks more like a hydra to me. blue cicle could be a vermetid or a small feather duster that closed up. I'm gonna assume that the 1st and 2nd pics are the same. Can't exactly tell from the pic but the animal in the 3rd pic looks kinda like a balanophyllia (hitchhiker cup coral) or related species.

LagunaGlide · Apr 11, 2018

Sonofives said:
1st pic red circle looks more like a hydra to me. blue cicle could be a vermetid or a small feather duster that closed up. I'm gonna assume that the 1st and 2nd pics are the same. Can't exactly tell from the pic but the animal in the 3rd pic looks kinda like a balanophyllia (hitchhiker cup coral) or related species.

You mean hydroids? dang... I hope not. I was thinking feather duster as well due to the shape. The first and second pics are the same just one is under full blues.

Cup coral is what I was told last time as well, but I was starting to get concerned as they grew.

KJ · Apr 11, 2018

Colonial hydroids!

cristata.reef · Apr 11, 2018

LagunaGlide said:
You mean hydroids? dang... I hope not. I was thinking feather duster as well due to the shape. The first and second pics are the same just one is under full blues.

Cup coral is what I was told last time as well, but I was starting to get concerned as they grew.

Oh yeah colonial hydroids whoops