Paph Olivia -roots or growths?

[Traci]

I have had this Paph Olivia for a year or two give or take. It was purchased as a seedling. It develops these nubs which if it were a phal I would have called an aerial roots. The nubs abruptly turn black. None of my other paphs have done this. Any ideas on what they are and what I'm doing wrong with culture ? None of my other paphs do this. It now has two fresh nubs amd not sure when and if they will turn black.

[ksriramkumar]

Some how I feel that the leaves are floppy and they are not at their best. Possibly lack of humidity or lack of water?

[raybark]

I agree.

Those are what I call "root stumps," that didn't develop due to lack of humidity, or too dry of a medium, or a desperate need of new medium.

[Traci]

Thank you Ray and Sriram. This is my only orchid without a repotting tag which makes me think I haven't repotted recently. I had relied on memory before my number of plants grew large but have since used potting tags. A short pencil is better than a long memory. I think I saw some cypress mix instead of the usual coconut husk, coir, perlite, lava rock and granite that u use. I. repotted the paph into my mix and it only had two roots into the pot. I guess it didn't like the mix it was in. I also water them twice a week in the summer and about once a week in the winter. Hopefully since I put it in fresh mix it will grow more roots even though it's a bit cool. The next time I water I will use some Kelp Max. Funny it's the only paph doing this but it's also the only one that didn't appear to have great mix. Perhaps the mix just got too stale? . The other paphs have very firm leaves.

[PaphMadMan]

Repotting was the right first step. I almost always is if the question includes the words Paph and roots. The next thing is to check your water quality and fertilizer rates.

[Traci]

Thank you. I use distilled only on them and fertilize at 1/2 strength alternating with regular fertilizer, magical (calcium and magnesium ) and kelp max for three weeks and plain water for the 4th week. I sometimes use inocucor as well. When I water twice a week in the summer the second watering was just plain distilled.
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[oile]

The images are not clear, but for what I can see I think it is a problem of radical suffering; the causes should be sought in the saturation of the potting material, fertilizer and how to use it, (before you fertilize, always before watering the plant), irrigation water quality.