Trying to save this poor grow

Hey friend, I know it looks bleak, but to be honest I learn more from failure than I do from success. And your plants look like they have a few buds developing so at the very least you might be able to have one home grown joint and it will be the best join you ever smoked because it's your own. Even if it is the most schwaggy weed it is still something to be celebrated. I thought ffof has some perilite? Just not a lot. I understand bottled nutrients and all the supplies get to be pretty expensive but there are a lot of dodgy companies out there So if you have to pay a little more up front to know that you're gonna be covered in the end versus having to make up for mistakes from badd companies it's worth it. Otherwise there's always the option of going with a living soil and dry amendments like the organic guys do, it's far less expensive than any bottled nutrients system will ever be. With your most recent transplant i know you mentioned only ph water for a week...you may want to stretch that a tad longer as at least ffof usually has enough nutrients for a few weeks. Unless your goal is to flush out the nutrients so that you can boost the bloom nutrients vs the vegetative nutes. Dinafem seeds recommended always using 1/3 aeration material with an autoflower plant and i only have tried this with my most recent 1 and it seems to help immensely, so doing the 1/4 perilite will hopefully work wonders for you. Good luck, keep fighting the good fight and don't give up, we all fuck up sometimes and it gets better and easier everytime after. I have high hopes for big john.✌️