Hi guys I have no idea how much ML of series of nutrients I need to put inside.

I am running 30 Autopot, on a 50 Gallon Reservoir.
I have RO water running, I got cal mag, sensi A , B, Liquid Karma, Superthrive,
Now I have add certain ml of these and find the right combo to get to 300 ppm and lack the basic knowledge to do this. If someone can help out it will be very appreciated.

probably don't need to fill the reservoir all the way. that would just be a waste of nutes. try and figure out how much water you actually need then add 5-10 gallons more. every week as your plants get bigger and drink more you just up the reservoir.

only use superthrive in veg. 1 drop per gallon of water with an eyedropper. you can use 2 drops if the plants get sick for some reason.

i have never used liquid karma so i can't comment on that. you should mix the sensi 2 part to 200ppm (always add the same amounts of each) and then add 100ppm of cal/mag. then as you increas these dosages you can increas the cal/mag up to 200ppm late in flower. try 1mL per gallon of 2 part and that should get you around 200ppm in r/o water. may need to add a little more. once you do it once though you'll know what you need.

Alright looks like I will get to know as I drop little by little.