White feather looking object.

[BringingThatDottyback]

These feather like organisms are growing out of one of my frag plugs from a tidal gardens order a few weeks ago. Haven't see them anywhere else in the tank but they are basically invisible unless you press your face into tank and and look from this exact angle. For all I know they are all over the rockwork.

 

[blaxsun]

They're cool.

 

[wattson]

Looks like Branching Hydriods