Just as written in your other question. If you have the feeling something is out of whack having a lockout irrigate her till input EC/PH equals runoff EC/PH with your base nutes + calmag. But 2.1 EC is not to high. Having higher output ec than input is normal. Would recommend you measuring runoff PH to check if everything is alright. Irrigate always with enough runoff, Work with the drybacks and irrigation frequency (water much more frequent than soil) and you will have lots of fun with this growing media. You can even have good results in coco when its treated like soil but you get best results if you treat it more like hydro drain to waste styl system (automated irrigation at highest level with watercontent sensor) combined with crop steering (drybacks during vegetative and generative phases)