what is this? some type of sponge?

[cokevanilla]

hello

saw it yesterday and freaked me out first; is this a sponge?

sry for the blurred pics, but there was no room to take the photo

 

[m3ntal]

I'm curing live rock and i'm getting those red blotches as well...I'd like to know what they are!

 

[cokevanilla]

<a href=showthread.php?s=&postid=6797799#post6797799 target=_blank>Originally posted</a> by m3ntal
I'm curing live rock and i'm getting those red blotches as well...I'd like to know what they are!

well, the red blotches are a type of coraline (if I am not wrong) and they are ok; me I am talking about the green "bean" right in the middle that has spikes on it and something coming out from inside...guess is feeding/filtering ....

 

[ChunksInClemson]

Might be a Christmas tree worm?

 

[mejiggery]

I could be wrong but i don't think its a christmas tree worm can't see no spiral effect. Think your going to have to try get a closer picture.
kind of looks like a mollusk of some type to me from first pic lol but i'm sure im way of on that one.
I Take it it has'nt moved from that spot since the picture was taken?

 

[pvtschultz]

I do believe that is a type of calcerous algea. I had something very similar to that until by YT found it and decided to eat it all. I can't remember the name but is difficult to keep going, especially in new tanks.

 

[cokevanilla]

<a href=showthread.php?s=&postid=6799180#post6799180 target=_blank>Originally posted</a> by mejiggery
I could be wrong but i don't think its a christmas tree worm can't see no spiral effect. Think your going to have to try get a closer picture.
kind of looks like a mollusk of some type to me from first pic lol but i'm sure im way of on that one.
I Take it it has'nt moved from that spot since the picture was taken?

no..it is not moving;
i saw it this week;
tank it is up an running for a year now;
i'kk try and post some new pics today

 

[cokevanilla]

new pics; had to remove the background ....

lokks like a scallop?

 

[Dubbin1]

I have a couple of those in my cube tank. Touch it and it will close.

 

[LAreefer]

i had 1 in my tank for a couple of months
pretty sure it's a scallop
looks cool though
i love interesting hitchhikers like that
hope it does well

 

[pvtschultz]

Ooops! I was wrong. That does look an awful like a scallop or some other type of bi-valve. It'll be interesting to see how it does.

 

[mejiggery]

I have to say i am totally shooting in the dark now but since i got the first bit right i think i'm due to fall flat on my face rofl but could it be a small Thorny Oyster ?

 

[Dubbin1]

I don't think it is a scallop since it attaches to the rock and will stay right out in the open under the light.

 

[slowECUdiver]

critter

critter

i have at least one of those that hitched a ride on my live rock. the sucker is constantly changing places to get more nutrients/food. if not a scallop, then definitely some sort of bivalve. i personally like mine, but i'm doing a FOWLR so i'll let him grow.

 

[mejiggery]

well I guess the main thing is that its not going to harm anything

 

[Evergreen]

It looks like a Brachiopod judging from the look of the opening and the tentacle-covered opening., especially if it is sessile. Usually, tentacular scallops are swimmers. It is really cool! It may not even be an identified species.