First off, if you want advice on plants you need to post pictures of them. Just talking numbers and theory won’t get you anywhere. I wouldn’t give up on your plants unless they are beyond recovery (without pictures that can’t be determined) because they are a learning opportunity. You’re so new to this that getting some experience, even if it fails or gives you a small yield, will be valuable. I ‘get’ that you’re anxious to have a beautiful monster plant with trichomes dripping off it but, at the risk of sounding insensitive....you need to slow your roll, brother. Smoke a joint and slow down. Learning to grow isn’t a race and you’re in this situation because you charged into your grow like a bull on the streets of Pamplona. Lol! In your hurry you made miscalculations and misassumptions. Slow down and follow a known and easy recipe/method and you’ll have a better time. I’m not trying to be an ass but I am being blunt about it. It seems like you’re kinda jumping the gun and reacting a bit quickly to things rather than waiting on some solid advice, following it and having a little patience to see how things change; before jumping to another remedy method.
I suggest you lay off spraying Epsom salts on your plants. At least for now. If you added lime to BioBiz, you should not be having a calcium or magnesium deficiency unless it’s due to a pH lockout. Even if there is, you’ll do better with a micronutrient product like MicroBlast and mixing it with Optic Foliar’s Transport. Those are 2 products I would never be without in my tool shed and it’ll be WAY more effective than your epsom salt foliar spray. But, again, without pictures it’s nearly impossible to give you solid advice.
Your soil isn’t ruined, brother - it’s just got an elevated pH. There are easy ways to fix that. Sure, you screwed up a little bit you damn sure don’t need to toss that soil and get more! Lol! If you do, send it MY way! Adding some sphagnum peat moss and some organic material (like compost or earth worm castings) will balance out that MINOR over abundance of lime. Again, SLooow down! Let’s move methodically and patiently through one thing at a time. If the plants die, they die; but I doubt they will. They just may not give you a maximum yield. At least you’ll gain some knowledge; and that’s far more valuable than some flower. You’d be surprised what you can still pull off a very ugly and poorly grown plant sometimes. *wink* Now...how about posting some pics of your plants and what you think the problem is/was??
For your next run, I’m going to suggest you do some reading in autobeast’s threads. I believe he uses both BioBizz soil and AN nutes and has a very simple methodology that’s out there in great detail for you to follow. Plus, you can jump into his ‘maximizing autos’ thread and get advice directly from him and some other incredible growers that either use his system or something very similar. Autobeast and the other main folks in that thread are VERY cool about helping new folks along.
Here’s his thread on how to do it his way:
https://www.autoflower.org/threads/...a-perfect-healthy-auto-start-to-finish.67300/
Start on page one and read the ENTIRE thread before you even think about popping another bean. I’d actually read the maximizing thread below as well, before starting any other seeds.
Here’s his maximizing thread:
https://www.autoflower.org/threads/auto-topping-thread-pushing-the-auto-limits.57281/
HTH