the system you have doesn't have clay pebbles right?? like crispi said your PPM is too high. 300PPM is optimal for the age with 400PPM being max. You need to measure the PPM of your water before adding anything and then add nutrients. Don't add any supplements at this point they are too young. You should start with very mild nutrients (300ppm range) and add those other things when the time comes in later veg state and flowering phases. If your PPM are that high before adding any nutrients you are adding way too much. Follow the label's instructions EXACTLY and if ever a question, reduce strength. Its always best to start off with less of everything. You have a little backwards, its nutrients first then supplements not the other way around. Also, your pH should be around 5.2 - 5.5 at this young age. Then bump it up gradually to 5.8 and 6.0 You're off to a good start just need to make some adjustments and maybe read the FAQ a little more.