First Den Nobile's - Looking for advice.

[Stevie_White]

First and foremost, thank you for taking the time to give some feedback. I'll admit that I'm nervous that I'll mess these guys up.

I picked up these two plants from my local grocery store. It's a new shipment (I was there a day or two ago and these plants weren't), and it's the first time I've seen Dendrobiums in my area (NE Idaho, USA). I couldn't pick between the two colors, so I got one of each! IF you happen to know the plants have a real name, and what it is, please let me know but it's not a big deal.

The Pink One: 1 big cane full of flowers and buds still to open. There is a stump from an older cane that got cut off but no idea why (there were several with whacked off canes in the display). There is a keiki starting on the stump of the old cane, and 2 new growths coming on the large blooming one; they are currently about 3in/8cm.

My Splayed hand is next to the white plant for scale - tip of thumb to pinky is 15cm/6in.

The White One: Nice pale green on the lip with a hint of pink at the very back of the throat. 3 mature canes all currently in bloom with the last of the buds opening now. There are 5 total new growths coming on the previous 2 canes that are staggered in their growth. The largest one is about 5in/13cm. These growths are all burried pretty far into the media. I've dug them out as best I can with my finger but can't quite see the base of them all.

My question: When should I look to repot these? Since I can't see the base of the new growths, I won't be able to see new roots very well if at all. Should I wait until the flowers are done? Should I wait until the growths are a bit bigger?

My environment: I grow in the home, and the home is kept around 70F/21C through the day.

Thanks again for the advice, and have a great day!