Ok that seems to be whats happening o some of mine. One completely stopped growing one stopped produceing new nodes but the leaves keep growing.I had two of my seedling not take to it well. 1 just plain grew retarted,,,lol The other stunted growth for about 2 weeks. The retarded one was tossed and the other finally started to grow. My next medium will have 70-30 mix. 30% being some potting soil with very little nutes in it, if any at all.
Next transplant is outside how much doesIt's really not necessary..but it shouldn't burn it..nitrogen burn..little sugar & Ph the water and rinse through pot...I really like fox farm but I mix it on the lowest of the range given. Still think it's the best I've ever used!! Good luck brother, Use mycorrizae when ever you transplant Enjoy the grow and keep smiling!.