No need to get worried, all new tanks get Diatom Blooms. The diatoms eat up all the silicates in the water, then will die out. No worries, it may take a few weeks, but they will go away by themselves.
The other crap growing is algae, which is coming from all your phosphates in the water. Need to get a Hanna Low Range tester for those, keep them between .05-.03, and then you will have no issues with the algae.