Originally Posted by Rusty Trichome
I just don't understand why folks with no experience add everything under the sun without knowing how or why. Personally, I wouoldn't trust a company that offered a myriad of unnecessary crap. AN is another company that has a cure for every ailment, and a cure for the damage from the original 'cure'. Always keep in mind...A profit-driven company can get rather creative in instilling fear of failure in the beginning gardener. It's how they turn a profit.
Do you understand when to use and how to apply the 2-part nutrients?
How about the additives? Did you NEED the Shooting Powder, which mentions "Please ensure that you correctly select your Shooting Powder option, as incorrect use could have detrimental affects to plant health", or did you just get one of everything, and add as directed?
I'd recommend that you flush well, cut everything back to the basics, and quit with all the extra bullshit. Most are unnecessary, and more often than not...it causes more problems than they solve. All you really need (till you get used to the growing process) is your base nutrients (A&B) and a working schedule. I'm not familiar with the H&G nutes, but you might need a sourse of micronutrients. Likely you've got their "micronutrient" product already, but if not, unsulphered molasses fit's that role @ 1 tsp per gallon of properly ph'd water once a week. (the molasses has Calcium, Magnesium, Iron and micronutrients)
The yellowing of the new growth is likely a sign that it's attempting to adapt to the conditions you've created with the additives.
Learn to walk before you try to run.