HELP! Mold on Coco noir

[don2020]

About two weeks ago I was unable to give plants nutrients but still watered, the leaves turned yellow and I managed to return to a nutrient schedule. They're slowly turning back to normal after a week, with me doubling the watering in hopes that it will help more.
I still some yellow and some dead smaller leaves but the problem I've noticed today is some mold on the surface of the Coco noir,
it's almost web-like. It's only on one plant.
Humidity is between 55 and 70 depending on the day, I don't yet have a humidifier but it's on my list when I have the cash.

Any ideas if this is a problem and how to remove it completely if it is?

[Tedtheclown]

What nutrients have you added? Looks like beneficial fungi. Certain organic nutrients will have microbes that can be awakened and will cause this fungus to grow.

[don2020]

Grow/Bloom/Micro and CalMag, all put into 2L per instructions that were included with them.
If you're confident it's beneficial, I'm gonna let it go. There is an odd, decompose-like smell (which could be from the yellow/dead leaves) mixed in with the lovely smell of the green-nectar, so I just wanted to be sure. If you need, I can provide other photos?

[Tedtheclown]

If you had dead leaves or any top dressing, i can see it breaking down and causing a fungus. Send more pics. For it to live amongst coco coir 🤔. You are using strait coco?

[YYCannabis]

It could be a sign that you lack air flow in the grow area.

[SoOrbudgal]

I agree with YYCannabis happened to me before indoor corrected by airflow