Dabkinganswered grow question 10 months ago Slight nutrient burn on the tips, otherwise it looks fine. Yellowing is caused by lack of Nitrogen. It is an easy fix and can be fixed in one feeding. The brown spots could be very early signs of Manganese, however if it isn't fixed by your cal-mag then flush and re water with 6-6.2 ph water. All things considered, the plant still looks good.