Dendrobium Kingianum, Parishii root, leaves and cane conditions

[Orchid-Obsessed]

Good day everyone.

Im on vacation this week and have read through a lot of the posts and I would like to THANK everyone for taking time to respond with very helpful details-wow! Thank you.

I was going to wait to attend my first orchid club meeting in September to find out answers to my concerns but it was cancelled. Besides, I need to find solutions to my concerns sooner than later.

I received Dendrobium Parishii in March, but the canes are still shrivelled. The leaves on the new cane has spots and cane looks awfully small or is that normal.

I received Dendrobium Kingianum by mail on June 11. Three leaves from one cane turned yellow and have fallen. Two more leaves on one cane are turning yellow. It’s June and isn’t it too early to rest?

Both were purchased as blooming sizes from online garden/nursery.

D. Parishii is in pure orchiata bark, in net pot. D. Kingianum in river rocks and bark in net pot.

No new roots on either one of them😩

Both receive weaker solution of Schultz orchid fertilizer every week. Daytime Temperature averages 26 c; night 19c, humidity at 50-60, 5” fan for gentle air movement on the plants. Fan and ultra sonic cool mist are turned off at night, bedroom door is opened at night. Window is opened at night if humidity outside will be over 55. Watering when pot feels light (not heavy). East facing window with curtain so no direct sun. I did spray them with hydrogen peroxide per MissOrchidGirl which I just read is not recommended by Orchid Board. How can I sanitize/sterilize new purchases instead?

Here are some photos. Should I be spraying canes with water to plump them up? Are the bottom of the canes rotted? Are any of the canes rotted? Should I direct the humidifiers fog directly towards the canes? Should I feed them seaweed, epsom salt? The roots are firm.

I’ll also include pix of my make shift growing area set up.

I would appreciate any recommendations for led grow lights. I’ve ordered a 5x5x6.4 outsunny brand clear 3 shelf grow tents so I can raise the humidity higher, put the fan and humidifier inside. So many to choose from out there.

I’ll be very grateful for your response before Sunday because I’m driving 3 hours one way to buy d. Phalaenopsis and biggibum at garden centre which doesn’t ship live plants.

I started orchiding just end of January and is now super obsessed with them, but I’d like to give them the proper care that they need. I’ve tried other hobbies, but orchiding is what I’m loving to do. I’ve got 15 now and I promised my kids I’ll stop buying soon. Thank you.

Photos are still upside down, I edited in photo library to make them upside down thinking that when I attach they’ll be right side up but didn’t work.