Stop thinking your problems are nutrients first. You stated earlier in the thread that your temps got down to 50 at night and then back up to 70 something in the day. This swing is far too drastic, a change of 10 to 15 degrees is all that you should see. The extra cold nights may be causing plenty of these issues. Also is your light still 7 inches from the top of the canopy? If so raise it a bit. While the temps at that distance may be ok, the light still may be far to intense on the plants leaves.
Also do you have any form of ventilation or even air movement? Just simply moving the air from point A to point B can make a huge difference in your plants health. If you have no fresh air coming into the system they are lacking both CO2 and oxygen and are basically suffocating slowly.
Your buds are filling in well, but I would cut the Koolbloom from your feed. I have seen that formation of super tight and leafy buds with leaves that droop down, it came from phosphorus overdose. I used
Bushmaster in a dose that was just too much, I only gave one dose, and for the rest of my grow I had severely clawed leaves and overly tight bud formation.
Also if you are still using tap water I would cut the
CalMag addition. There is usually plenty of calcium in tap water, and your adding more, especially when considered in ratio to your N-P-K levels, may be doing more harm than good. One of the toughest issues to diagnose is calcium and magnesium overdose or under feeding; they look very similar to one another. And as for your water, since you only have two plants go buy distilled water from the store. A 1 gallon jug is usually about $1.50, and for your two plants should be sufficient for a while and not an expense that will break your bank. Plus it will make a difference in your plants health and final product. The issue with tap water goes much, much further than chlorine levels. Depending on where you live, chloramine, fluoride and other chemicals and minerals are added to the water, and letting the water sit for 24 to 48 hours will not remove these from the water. So use distilled water or suck it up and find the money to purchase a proper RO unit.
Honestly it sounds like there are lots of differences between this grow and your last. I usually recommend to people to only change one factor at a time; this way it is much easier to discern which change caused what issue. And having the correct tools and instruments will make checking all of this easier (loose the drops, get a proper pH pen and invest in a PPM pen as well).
All in all it looks like you will have a bit of good bud to smoke when you are done, but it probably won't be as much as you were hoping for. This is a learning experience more than anything and hopefully you will apply these lessons to your next grow. But more importantly than any of that, have you enjoyed the process of growing these plants? If the answer is 'yes', you are well on your way to success.
