look at the last pic of week 5, the leaf is grey (...

Hi @TheReaper! Well, we're missing a lot of crucial informations in here, and I think you're having multiple issues. What are your day&night temps? Do you check the pH and EC levels of your waterings? What nutrients have you been giving to your babies and at what frequency? In this scenario, I'd get a pH-pen asap and check the pH level of the run-off, to better understand what's going on into the medium. Then, depending on the results, give it a good flush with only plain pH'd water (pH ~6.2) and/or give it a good meal with blooming fertilizer, and control the amount of nutrients by measuring the EC, then see how it goes / how the plants are reacting. Finally, the more informations/pictures you can post on growdiaries, the better help & diagnosis you'll get in return. Hope this will help, good luck with this run, keep us up-to-date and happy growing 👊

Hi . I cant say anything without more facts in your diary. Its only guessing... be so kind fill a few more facts ( Humidity/ heat/ Watering amount etc. and a pic in natural light. it could be everything from overwatering ,moldering t to hot, to dry etc, the leaves are dieing. and that could have alot reasons. In a pic we can see where it ot and how it looks like... greetings

The gray spots are symptoms of phosphorous deficiency, give them some bloom nutrient or PK Boost. It's quite normal when buds are forming.

Hi there ! According to me it's looks like a ph fluctuation that leads to a Ph burnt ! You need to check you ph range and keep it around 6.2~6.5 ! We also needs to know the nutrients that's you're using and the EC/PPM concentration !! 😁👍