My mothers appear to be sick. After roughly 5 months I have started experiencing problems. I have cloned, and harvested 35 plants off my mother plants so far. I've tried to research the problem using the forum, but i just can't pin point the exact cause such a nute lockout, or exact deficiencies. I haven't changed anything I was doing before. I'm using Happy Frog soil, and water with RO water. The PH on the run off is about 5.9 which does seem low for soil grow. I also made some bone meal tea about 6 weeks ago and watered them with it. Other than that nothing has changed as far as what I was doing when they were healthy. Here are some pics to get an idea of what's going on. Any help would be greatly appreciated.
Check into the rootbound issue. also, Add some dolomite lime. This will help buffer the soil closer to 7.0, and fix your cal/mag issue you are having, too.