What creatures is on the rock?

[CFOh]

Hai, any idea what is on the rock? Thanks..

[CFOh]

Below is top view pics.....

[CFOh]

Zoom in....

[CFOh]

Further Zoom in..

Cheers and Happy Reefing...

[iskay]

Interesting... Do they move?

[CFOh]

Interesting... Do they move?

Yes.. They do...

[Terryz_]

Eeek.. They move???

[onizukaa]

GO free gift for xmas

looks like slug? lol nice expression from terry haha

[yikai]

its some kind of sponge/tunicate that kind of family i think. but i dont think it's a sponge nor a tunicate.

just leave it bah it's harmless

it's very common.

[Terryz_]

GO free gift for xmas

looks like slug? lol nice expression from terry haha

LOL... They look worse than slug.. LOL...

[CFOh]

Eeek.. They move???

Haha, at first we think is type of algae from far look... after closely check this thing actually moving...

GO free gift for xmas

looks like slug? lol nice expression from terry haha

Haha...xmas is coming....

not too sure what is it? But it looks close to Platyhelminthes species....

its some kind of sponge/tunicate that kind of family i think. but i dont think it's a sponge nor a tunicate.

just leave it bah it's harmless

it's very common.

Ya, Intuitively I feel it should be safe... cause all are only on the rock or coral chips surrounding coral.. looks like cleaning in action... none of them are on the coral...