What is going on with my tank??

[velocityoflove]

Lately, I've had a lot of weird stuff popping up in my tank. It all started with the crazy algae that nobody can identify and is everywhere. Now there's new stuff in there, and I was wondering if anyone might know what some of this stuff is:

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this one is similar to the algae, but more on the white side with a few other slight differences

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[heathlindner25]

#2 is sponge ,harmless

 

[ringo®]

Yeah....#2 is Pineapple sponge it looks like.

Edit: #3 maybe some type of rosenvingea
#1 looks like maybe the start of neomeris.....but prob not