If those are equestris, they're big plants!
I'm suprised no on has commented on the "double" plant. If that's a basal keiki all grown up, it's huge! It also has multiple spikes and the parent has at least one spike. And there's a third plant in the pot, to boot!
The common wisdom with Phals is to remove any keikis when they have roots at least 2" long. That keiki is as large as the parent plant! I wonder if the effort to support so many flower spikes will endanger the parent. If you do remove it, do it before the spikes develop anymore (now would be the time, or after blooming. But after could be a while and the plant might not be able to support all the blooms on parent and keiki.)
Do any Phal species throw off stolons? I certainly haven't run across any. Or is this simply a keiki factory (equestris are known for that) and the keikis share their pot with mama...
What do the Phal species growers think?