To me your just over feeding them abit . I would slow down on the amount of nutrients fed not the strength but the amount . Instead of watering them every time with nutrients try doing it 2-3 times . Your leaves look really dark which is a good sign of nitrogen toxicity like every is talking about but there are no signs of burns . I would also recommend only using Bloom solution this way you can be assured that its the same every time . Not that this will have a huge effect if your monitoring it but some nutrient systems don't mix well . I would also reduce the amount of CalMg being fed your aren't running into any deficiency of either . This will hopefully correct any lock outs you have . I hope you find this information useful . -Happy Growing!