I started growing about two years ago and have been using nothing but the fox farm line of nutrients the whole time. Their stuff is great but, depending on your strain, you should only use the nutrients at 1/4-1/2 strength. Try 1/4 strength for awhile and make sure your leaf tips and edges aren't burning. Then u may b able to up it to 1/2 strength. If you're using the fox farm ocean forest soil, u don't even need to fertilize with anything for 3-4 weeks because it is so packed with nutrients already. After this I usually will use grow big at 1/4 strength, watering about every 3 days with 1/2 gallon per plant (they r in 5 gallon pots). My schedule is fertilize, wait 3 days, fertilize, wait 3 days, then water with just plain water, then repeat the process until your ready for flowering. Then I do the same schedule and same strength (1/4) with the Tiger Bloom. Make sure u don't fertilize with the tiger bloom until u actually c the flowers developing. In the meantime, until they develop (which should only take about 2 weeks after u throw them into flowering), I usually just water with 1/4 strength Cal/Mag + Nitrogen supplement (the strength of that is 2-0-0). The nitrogen just helps the plant when its stretching in those couple weeks. Then, like i said, i just use tiger bloom on the above mentioned schedule and big bloom at 1/2 strength about once a week. The big bloom DEF has an effect on the final taste, ive grown with the big bloom and without and the taste is so much sweeter with. Oh yea, and don't forget to have a pH test kit and ph up and down, VERY important, adjust the pH to between 6 and 6.5 everytime u water. You should also check your tap water and c what the pH of that comes out to b. My tap water's pH is around 7.8 and very hard, so i buy spring water at the grocery store to water all my stuff. Anyway, if u have any questions on anything i missed feel free to send me a message on here.