yeah i know its been asked 100+ times but what exactly causes brown tips and can it be reversed? i have two young plants and they have brown almost black looking tips and some spots. but my main Q is can it be stopped or reversed easily?
Most of the time its caused by over nuteing, or nuteing too early. Assuming this is the case, usually a flush can stop this problem. However, we would need a lot more info to give your particular case a proper diagnosis.
its my first grow and im not doing anything fancy i just threw some seeds in a pot and watched them grow, no nutes or special water. the first month or so they were under a household flourescent bulb in a big light fixture then when it got warm enough i put them outside and they seem to be thriving and growing a new pair of leaves almost daily except the loder leaves are getting brown tips and shit