So now my other strain is having issues. Oh going in at 6.5 runoff is 6.3. Ppm of runoff is 578. Started with FFOF on 9/2 haven’t given them anything other than water. Had issues with a PH pen. Could it be that they need Nutes?
You'll need higher output light or move the light closer to stop the stretching, and possibly a stake to hold them at some point.