White spots on leaf

Hi there, I just looked at your diary and couldn’t help but notice you are running a PH of 5.5. This could very well be your problem. You really want to be between 6.0-7.0, ideally 6.5 in my condition. Sorry I kinda answered that before I looked at your full diary. Even if that’s not the fix managing PH levels in water is super important or your soil will become acidic later creating nutrient lock out and will present as other deficiencies. This is due to the roots not being able to absorb nutrients in acidic soil, and it will only get worse once you start feeding them so fix it now ok? You can easily up your PH levels in your water by adding small amounts of baking soda. Use sparingly as small amounts raises PH very easily. Good luck!

It looks to be either spider mites or thrip damage. Hard to tell from photo but you should spray your leafs with a neem oil . Hope that helps

Honestly to me it looks like pest damage. Check the under sides of the leaves for activity.

How much and how often are you watering? These girls will take a shot glass or two of water right at the stem now and be ok. Watering only at the stem to start helps them shoot their Taproot down before out and will help them achieve the best root system. Does your soil have added nutes in it? Or is it an inert medium? Adding nutes to a girl in a Supersoil isn't advised due to them usually having enough nutes to last 3-4 weeks before any feeding needed. Have you been using carbon filtered water or straight tap? When using tap let it sit out for 24 hrs so the chlorine will seep out. Hope this helps! Cheers and happy growing!