several new phals with strange spots and colors

[imgliniel]

Hello all, I am hoping someone here can help me with this. I recently brought home a bunch of orchids on sale from home depot, and a few of them turned out to have some, shall we say, issues. So I hoping someone here can id or give me suggestions on how to treat this stuff. Until everyone has a clean bill of health they are quarantined away from my other guys.

The first issue is that I have one or two that has some yellowing of the leaves, and the leaves and some of the moss they are planted in have this weird pinkish tint, I have absolutely no idea what to make of it. Pics one and two)

The second issue is I have a plant displaying these small black spots on the underside of the leaves. Now cellophane was wrapped around these guys, and it was trapping water around the leaves, so that is probably a factor. (pics 3 4 and 5)

Third I have this one (pic 6) that has this giant brown/black spot, and I am not sure if it is fungal, or the lea was just damaged in some way.

And lastly (final 2 pics) I have one with a serious case of crown rot. I did not even notice it until Ipulled off that stupid celophane and the two top leaves came with it. The yellow is turmeric, I have started treating it with peroxide and turmeric. If anyone else has suggestions I am totally open to them.

I would be so grateful if anyone could help me here. Sorry if the pics are a bit blurry, cell phone, lol. My USB cord is missing so that is the only way I can get pics onto the computer