I used pool shock in the reservoir along with 1/2 tsp of jacks citrus and 1 tsp jacks aquagold finisher per gallon in flower, also calcium and Epsom salt. Kool bloom and floralicious plus I would hand water separately. I found the aquagold in 2lb bags on amazon they changed the name to...
Have you checked here?
https://graywolfslair.com/
https://graywolfslair.com/index.php/9-diy-cannamed-production/9-4-extraction/9-4-7-ethanol-extraction/9-4-7-1-qwet/
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