You getting very close to Jacks with that mix?
I use a Fulvic Acid from an Aussie company called converte
https://www.converte.com.au/product/premium-fulvic-acid/
Been using it a couple cycles now really liking it, not cheap and only available in 5L. Pretty sure its imported from the US. It is water extracted, contains micro nutrients, heaps of carbon 10 other organic acids and amino acids. Stays stable in my res as well.
I also am using there seaweed based extract
https://www.converte.com.au/product/converte-organic-liquid-plantfood-super-concentrate/ which they sent me some testers of. I foliar apply it with the fulvic though, tried it in the res went sour in like a day.
They ahve some proprietary or patented not sure exactly sugar based chelation. Pretty sure nutri techs hydro shuttle range is based on it. Same as nuttifields carbo load.
I also always run beneficial organisms, usually i opt for bacillus species. this time i jsut got some mykos that was on sale.