If you're using Advanced, I'd recommend using their bloom enhancers too.. I use nothing but AN, and rarely have a problem related to nutrients.. it's typically on a long flowering sativa (12-13 weeks) this is fixed by a simple low strength (350-400 ppm) flush with base nutrients only, followed by watering after it dries. I also never mix anything hotter than 2ml per liter. In other words, with a 2 part mix, 40 liters of water (just a bit over 10 gallons) would get 80ml of each. When stacking the other products use a 2:1 ratio of the enhancers; 1/2 the amount you used for either A/B of the two part. If your base is a single product, then 1/2 of that amount. With any additives, I like it to be no more than 850 ppm. B-52 is especially helpful if you've done something to stress a plant such as pruning or repotting. I'd get my pH in the range of 5.8 - 6.3 depending on strain, etc. Seems like sativas like it a bit more acidic..

Also agree with the other post, don't sweat it.. they're pretty far along.

So.. flush them, possibly lighten up on the nutes.. and you should be good. Also, I like nothing but water the last 2 weeks, even on a strain finishing in 8 weeks. For a real fast one that finishes in 50 days, I still flush at least the last 8 days. Makes for a clean burning, good tasting product.

Good luck!

Peace,

Farmer Rich