Advanced Nutrients Tarantula how to: HELP ME

I have a lot of the AN additives in my grows, and i usually use about half the strength of what they state. Reason is that for my hydro grows I measure the EC of my water every day, so i know exactly how many nutrients my plants take up in total, and i want the overall ratio to stay the same between my regular nutrients and the additives like tarantula, piranha, big bud and so on. I usually first mix a "normal" amount into water (so the values that are mentioned to take), then measure the EC value and then add as much plain RO water, until i have the desired strength based on the EC value, which mostly ends up being about double the amount of what i started out with. So I basically diluted the initial mix to about half of what they mentioned on the back. happy growing!

You return that stuff because you've been ripped off and before it's too late. If you've already opened it... You open the lid you take your little measuring device and your measure 1 ml to 1 liter of water.. So if you have 5 litres of water you add 5 ml.. After that you can goto the regular dosage of 2ml per L or just keep using 1ml per L, they want you to use the stuff faster.