Need help with weird symptoms happening with my collection

[ps3isawesome]

Hey everyone, really appreciate you coming in.

My open air nepenthes collection has exhibited similar symptoms of:
1. Newest leaf being smaller than older leaf
2. Deformed pitcher
3. Leaf doesn't unfurl all the way
4. Slowing down in pitcher production

The max temperature this year in coastal California was in the mid 80's with a night time temperature drop in the 50's. I do have the fan on through out the night. I water only once a week and sometimes the media is almost dried out when I water. I'm thinking it could be dry media that attributes to these issue but not sure.

I would really appreciate your feedback and thank you. The various symptoms are described within each photo.

 

[Harow]

If you only water once a week, then it is due to lack of water.
Sphagnum is hard to revive when it is in the soil and has already dried up.

 

[theplantman]

Macronutrient deficiency.

 

[NemJones]

So far, Im thinking nutrient deficiency as well.
what plants are doing this?

 

[FLTropical]

They look dry to me. When mine have dried out the leaves act weird - misshapen, curled, and change colors sometimes, depending on species. I see some signs of deficiencytoo -do you fertilize?