Ok thats another thing now, Your plant has a lack of nutrients. Either because of the wrong ph, or wrong soil..... i have not so much infromations about your grow.. so i try it to say plainly... check ph of the runoff.. ph should be between 5.8-6.8....thats the range where the plant can absorb the nutrients. Wich soil do you use. ? soil and seeds are the basic of the grow , and to save money here is the wrong place.i would recommed you to get a pack of prmixed cannasoil ( biobizz/ plagron) so you are save for weeks