[karimwassef]

I would post these in the dino thread and ask for more feedback.

It's missing the usual bubbles but it grew overnight so it might develop bubbles under light.

The very fast assembly does point to dinos but you really need a sample under a microscope to tell.

It looks like it could be one of four things: bacteria, mucus, golden algae or dinos

If you're carbon dosing, you might have excess bacteria. If it's only coming off coral tissue, it could be mucus due to an irritant.
There's a good chance that it's golden algae given the long structures you posted above.
Even among dinos, there are several different strains... post in that thread.