Unidentified hanging object???

lathamsim

New member
I set up my first tank 10 days ago using uncured live rock - it is still cycling but I have noticed a half inch long rugby ball shaped lump hanging under one of the rocks - it was all covered in a browny grey 'slime' . Then I noticed that part of the slimy covering had gone and underneath is a dark pink/red colour with white (could be white rings but not enough uncovered to tell) - also has a small hole in the uncovered section with a very fine appendage coming out - it looks like it could be reaching around but this may just be a small section of the covering still attached and moving with the current - any ideas anybody???????
 
Sounds like a sea squirt and is very common. It is a filter feeder and its larvae is a vertebrate with a back bone or noto chord and almost looks like a fish larvae it is evolutionary one of the first chordates (organism to evolve a back bone).

http://www.keiths-diving.co.uk/diving/BU101.jpg

They come in slightly different shapes, and very different sizes and colours.

The link below is a diagram of an adult seasquirt and a larvae.

http://www.auburn.edu/academic/classes/zy/0301/Topic3/tunicate.jpeg
 
Last edited:
Back
Top