WHAT IS THIS?

[Noireatsbear]

A couple of sub questions.
One is, is that whole black and purplish thing an organism?

I was looking at the whole thing when i noticed like 2 really thin, translucent looking kind of strands that was moving on it. seems like its using (i'll call it antennas for now) to pick up sand or something.

Then, I saw a huge white strand come wiggle out.

Wthat the hell is that?


also, i started to notice that, the aquacultured live rock i got from KP aquatics starting to turn really white as you can kind of see in the pictures. is that normal? and what is it?

 

[shadesatsetbreak]

It's an Alien larvae.
Careful, their blood is acid.

 

[Chefwheredyougo]

Bump
#reefsquad

 

[homer1475]

The clear strands were probably brittle star's, but the other, no idea.

@KJ any ideas?

 

[KJ]

Pic 1 look like byrozoan.
Pic 2 Spionid worm.
Pic 3 Peanut worm.

 

[Ron Reefman]

I think KJ may have it right... even if he did it at 3:31 this morning!!!

 

[saltyhog]

@KJ is the man! The black/purplish thing looks like sponge to me.

 

[ChgoGoodGirl]

Yep sponge and spaghetti worm.

My live rock with purple coralline algae often bleaches white. eventually it comes back to purple. Its mainly just because your tank is never going to be exactly like where it came from (lighting, water parameters, etc)