feeds

Hi guys I'm not sure if I'm having a mold issue here . I was in soil which took to long to dry between feeds so I switched to hydro coco yesterday .I'm on week 2 of veg

Just wondering if I'm putting in an EC of 1.5 and run off is 1.0 is it worth upping the feeds?

I have two strains in week 3-4 of flower , receiving same feeds 400-500 ppm 5.8-6ph , coco, good temps atm im having trouble with one , would anyone offer some ideas on what to change from symptoms in pic ? Curl / droop/ of smaller leaves mainly? I feel like ive underwatered but after...