Any idea what kind of nep? And does it look generally healthy to you?

To make a long story short...

This little guy was seriously neglected and I'm trying to nurse it back to health. I did a lot of online research but that's all I have to go off of. Its looking much better but I'm still unsure of how it's supposed to look so I just wanted to get some opinions. Just got repotted bc I dropped the pot and it shattered into a billion pieces so I had no other choice. Every pitcher and almost all the leaves were dried and brown 2 mo ago so I cut them off. Since then it's grown lots of new leaves, even new shoots down below but no pitchers. I keep it in the bathroom for humidity reasons and have been misting several times a day to up the humidity. Since it's been getting darker I've started giving it several hrs under the T5 everyday.

General info-

Potted in mix of half sphagnum half perlite. Spent the summer outside and just came in about 3 wks ago. Purchased in May at a nice local nursery. No fert since purchased. Since fall hit I'm only watering about 2 times a week, never letting it get dry but never sitting in water either.

My questions are

1. Is this size pot okay? I noticed when I dropped it how small the root system really is but didn't want to pot too small and wanted something nice and heavy since it can get all topsy turvy.

2. What are the tendrils supposed to look like? Are these brown bc they're dried up? Or is that color normal? If they are dry, should they be snipped or just left alone?

3. In one pic you can see how one of the leaves looks all distorted and puckered. Any ideas? Haven't found a pest on this guy and most leaves look good to me.

4. I basically live in a cave, is artificial light okay? It's all I've got!!! How long under T5 and how close?

5. Everyone seems to disagree on fertilizer. Since it has no pitchers to catch it's food I feel like it needs some food (maybe not necessarily fertilizer but food) Do you use it on yours? If so, what kind? Consensus seems to be orchid fert at quarter strength. Foliar or water soluble? Osmocote pellets?

6. Do humidity pebble trays work?

Thanks in advance!!!