Hey, you need to check the pH of the substrate and the runoff water to know if you're in the right levels, 6-7 is ideal.
It's also very important to check the EC of the runoff water from watering because that way you'll know if they're accepting the nutrients or not.
Usually, the substrates come with more fertilizer than we imagine and we end up over-fertilizing the plants, that just happened to me.
You have to wait for the soil to dry out well and adjust the pH of the water.
With those nutrients you're adding, you probably have a low pH and the EC is too high; you might not notice the problems now, but later on it won't have a solution.
Message me privately and I'll send you an article that explains everything in detail.