I was most reacently trying to feed some A5 crosses, NH and a few ACE sativas the same strength PureBlend Pro as hybrids. I was at most around 1.2 ec. Was in coco. I started these in promix and up'd to happy frog and got a bit of initial under curl and a small bit of tips on half. The top node is not curled under. Feeding just RO. I did add a bit of mycos upon up pot. Trying to give them as little as possible. I'll post pics this week. Todd's. Just put on blumats too forgot. They didn't get KO'd like w the coco.