Growing Problems, Brown Leaves

Hello Everyone,

I am new to growing and I am on week 2 and my plant was growing great, about 1cm/night and now today I just noticed one of the fan leaves have a curly brown tip like in the picture below. Can anyone tell me what this could be a symptom of?

The curl and burn could be from nutrient burn. What are you using @ what ratio on the little lady ?

i was told to not use any nutrients till in veg state
at least thats what i was told for growing hydro he looks like hes got soil

...it's nute burn, even though you didn't add any nutes, chances are your soil will have a good amount...

...no need to panic, you'll be fine in a week. your plant will get used to it and start doing well...

I am using the ratio of about 6-8-5 and I think I over fed, at first I fed it everyday like a couple of drops and I stopped thinking it was too much so Ive been doing it once a week so far but then I read it could be phosphorus deficiency so I added a few drops of it today. I am not sure if I am doing too much and what amount to feed it at but I want to try and save it.