i think that you are using wrong type of nutrients
actually you should not be using any nutrients for the first monthof its life....the light that you have is good...i don't know about the soil mixture but if its well aerated and drain well then you should be fine...also it is evident that is being overwatered propably because of your excessive love to it....
use nutrients with NPK levels in which N >P<K during vegetation (but again it's not really needed, the soil is usually rich enough for a month) and change that into N<P~K when into flowering....