Dificency? Recently acquired Cherry pie medical mother

But, I feel there is a deficiency issue. I got the plant 3 days ago apparently just transplanted and no nutrition added since transplant. Was told it was being fed flora nova. But that seem too soon to me. Treating for spider mites with Organicide. Does not seem to be an off the wall infestation. I'm trying to get her back on track to clone, she came from seed. As you can see in photos I have closet set up with in take and out take fan a d two lights. Light rotation 18/6, uv lights. My water is soft had other plant some in with phosphorous def. but didn't catch fast enough. The soil is a peat moss potting soil. I've noticed small pincher bugs in soil. Only 5 star leafs.
Any suggestions I'm open to help and criticism.
Happy meds

Do the basics PH of the water, soil, a complete fertilizer with everything in it. You can add silicon to help with pests and stress, kelp for minerals etc, worm casting tea to charge the soil and molasses to feed the microbial life. Watch the new growth that will tell you what is happening.

Why are you putting infected plants in your grow?

What is soft water? From a salt type water softener? I have a softener but I use the hard water (calcium) rather than the softened water.
What is UV lights and why are they good to grow with?
How does a plant get phosphorus deficiency?
What brand name is this peat moss potting soil? And how did it get bugs in it?