I second mrfixer. Not sure on first pic but second looks like a sponge. Sponges grow pretty slowly so if all the orange in the first pic grew rapidly I would say not a sponge but some kind of algae or diatom bloom, but it is a bit hard to see in the picture.
I agree that the white spider web looking stuff is a sponge. The red stuff looks like cyano, but it also could be coralline algae. The brown looks like the brown algae associated with a tank that is cycling.
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