I heard about GUANO (Bat Shit) and Cow Shit. It gives good nutrients to the soil and your plant will be stronger and in the flowering process it will get better yield and better concentration of THC. I'm not sure though but if i try it i'll keep you updated. I had a plant that died like 5 days ago and i grew it indoors without any nutrients, just tap water and cheap lights and i got nice size (4 feets) plant with nice buds, not that good on THC though but i got high. Now i got 2 seedlings coming out. This time i got my soil mix with Hyponex Plant Food for Veg and Flower Stages and i planted the seeds directly into the soil and they are doing good. I still got the cheap aquarium lights and 2 100w regular bulbs lamps but i will use those lights just for Veg stage. I will buy some lights for the Flowering stage (CFL's Probably) and sit down and wait and take care of them. I don't have good seeds, just seeds from my dealer regular weed but actually the plants are really pretty and they give good buds (only good females). Well, sorry for all this paragraph explaining my plants life but i like to share my experiences so i get good advices. You have a great day and Merry Christmas. :smokin: