How much in milliliters NPK should I put on each of my plants?

you'll probbly need a more K and slightly more P for any long-term well-balanced feed. less whatever is in your soil. That's the kiccker why no one can give you an exact answer.. wht's in the soil? proper irrigation --- water entire pot... allow top 1" (a knuckle deep) to dry before irrigating again... how long between is not for us to decide... the plant andn size of pot will make that determination. so, irrigate (whether fertilizing or not it is the same process) until minimal runoff to ensure it is fully saturated. Dry pockest will cause problems over time. Wait for top layer to dry, then repeat same process. The weight of the pot when dry is an easier way to do this, but you have to learn what that weight is, first.. then, you can implement it on 2nd cycle and so on... going by weight will result in a similar volume of water needed each time -- again, we do not pick this number, the pot, the plant and your environment does it for us. But after first irrigation cycle like this, you can more easily estimate how much you need to mix up, if fertilizing that round. when to fertilize... well, too many factors to give a simple answer. Depends on how "hot" the soil is (not temperature but how much nutrients came with it?)... so, you generally slowly ramp up the concentration you give the plant over time... observe and react to the plant. IF you use the same soil each time, you can become familiar with when you need to add more after X days or weeks. whether you fertilize every other or every third time, it will only impact how much you should give.. more frequently you need to give a little lower concentration than less frequent fertilization So, anyone giving a specific suggestion on this isn't helping you. it's a balancing act you have to learn over time... if you have consistent soil, you can expect similar ramping up of nutes...

Thanks for the attention, mister Youthman, I should give NPK every time I water my plants? I thought NPK should be given every 10-15 days and pure water every 2 or 3 days. So it should be something like 200ml of NPK every 1-2 days?

Hello! Then keep in mind that if they are not huge plants, they may very well simply drink 200-300ml of water every 1-2 days, so for yours you can prepare for example 5 liters of water (20ml fert then) and give a little bit every day until you finish the 5 liters.