My humidity is at 65%-70%rn at this stage
Unrelated to humidity but I tried my first grow with coco and was having what appeared to be a calcium deficiency. And according to royal queen seeds blog this is common in coco coir. So watch out for that. You may have to rethink your nutrient selection or possibly transplant in soil down the road. Disclaimer I am not a very experienced grower myself but that is the experience I had with coco.
Growing Cannabis In Coco Coir Or Peat Moss - RQS Blog
Your cannabis growing medium isn't just limited to soil. Learn to grow the herb using coco coir and peat moss mixes.
www.royalqueenseeds.com
The above is a link to the article I mentioned.