I am in my 4th week of flowering and it seems as if my plants are not taking their nutrients. I could see this by looking in my reservoir, it is still really yellow and I haven't put any more nutrients in it for about 2 weeks now. My plants are kind of close to the light (10 inch or so) and I can't get them any further. They are yellow just at the top. They look very healthy/crystaly and what not... Any suggestions? My ph is between 6.0 and 6.5 .. I am only using FloraDuo bloom right now. PLEASE HELP! Thanks