You need a gram scale and this is how you mix them:
In a 1 liter bottle add:
59 grams of K2SO4 Potassium Sulfate
6 grams of KH2PO4 Mono Potassium Phosphate
Fill bottle with RO or Distilled water, shake well, let sit overnight.
In 1 liter bottle add:
65 grams of KNO3, Potassium Nitrate
Fill bottle with RO or Distilled water, shake well, let sit overnight.
In 1 liter bottle add:
80 grams of CSM+B
Fill bottle with RO or Distilled water, shake well, and let sit overnight.
Then you dose 1ml per every 10 gallons of tank water daily. I suggest taking a nitrate and phosphate reading right before your weekly WC so you can see if you need to continue to dose nitrates and the phosphate/potassium at the same level or not. This allows you to custom dose your tank to the levels you want. Generally you want to shoot between 10-20ppm nitrates and 1-3ppm of phosphates.
The above weights are for 1000ml bottles so if you get and use the 500ml bottles you need to use half the amount listed.