Slight yellowing on the tips on leaves. Following ...

Without a picture or two of the issue, it is very hard to provide any suggestions. However, burned tips is usually a sign of feeding too much or too often, or both, and after looking at your diary, you sure are feeding a lot of different nutrients. A baby plant needs baby feeding! Also, 24/0 is really stressful for plants and 18/6 is the optimum schedule. Plants NEED sleep to finish their photosynthesis cycle and have a correctly functioning metabolism. A plant with an incorrectly functioning metabolism will never grow to its best potential. 24/0 could only be recommended by people who don't understand photosynthesis or understand how plants function either. The myth that it is ok to grow a plant for weeks/months without sleep needs to be removed from history! Everything on planet earth lives by a circadian rhythm, without one things go very wrong. Fortunately, it is never too late to go to 18/6! Your plants will love you once you give them the sleep that they NEED. Hope this helps, Organoman.