[Cavan Allen]

It looks like staghorn to me too, which is thicker than beard, kind of rubbery and more branchy. The important thing is that you are underfertilizing by a good bit, as both show up in very similar conditions. A better source of co2 and a solid fertilizing routine will defeat it. Getting rid of that stuff is easy.

How much nitrate are you adding? Phosphate?

You're going to need more micros as well.