Hello all, is muy first post here and this forum is amazing, i have a sick lil baby and i need your help see if i can save her!!!

she was growing perfectly well but then the stem started to turn brown, with spot stains, and leaves are falling and the plant is getting emptier everytime... can this be pythium? or waht else can i t be and how can i save it?
thanks a lot for your time brothers!!!

By the way, the upper part of the plant is much better so shes still fighting help me save her!!

i attch three pictures!!!

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phosphorus deficiency is likely the cause. get more of p and less of Nitrogen. your plant doesnt look too bad. i can see it sorta looks nuteburned so its 80% that it's your nutrients that are doing these things

So you completely sure its not any fungus? that ones is a kushberry... but i have another rocklock and shes had same feeding and is doing all well....
thanx for your reply!!!

I have seen this before... Keep your eye close when she starts to produce bud, she will also produce smaller buds but hey bloom cycle will stay on track.. I am not sure what it is-I dont have no technical name for it, but I know she will be ok.. U should give your plants some nutt's by the look of things Otherwise, its nice to see u using larger amounts of soil... I dont, but I am indoor and have a set way.