3ml / 300ml????? That's like 9.3ml/L
What Ml/l you're giving is good.
The zyme is too low, unless they its recommended you only need a small amount.
Also. Calmag at this stage. Is not really needed. Its just an extra nutrient your plant is trying to uptake when it should be focusing on pushing npk. So, drop your cal mag or feed once every 10 days or so.
As for the 2-3 days of feeding. I feed 2 low tds feeds a week (6 days) in normal conditions.. now I'm feeding every 2nd day. With water each day
With reg environment. Feed and then water water feed water water feed. You'll find what works for you in soil
Your ppm/tds (tap not included) should not need to go beyond 5-700ppm so if your tap is 150ppm than it will do best in the area of 650-850ppm 1.2-1.7EC.
If you need help growing and figuring out your best course. Feel free to mes anyone here who answers myself included, (anytime)
Good Growing