Hi there is this your 1st dwc grow. If so using 5ml/L may be way 2 strong and may burn your plants. My base water EC is 0.2 and I prob only increase it with nutes by 0.2 each week. So my 1st week I run at Ec 0.2, 2nd week i add nutes, about 0.1ml/L micro, 0.05ml/L grow, 0.05ml/L bloom. I also use hydroguard to prevent root rot at 0.5ml/L. So second week my Ec will be 0.4. I'm no expert, but I have learnt over the years that I used to over do it on nutes and always ran into problems because of it.
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