for vegging you want a high nitrogen (the first number) and the rest low numbers to the best of my knowledge im not to educated on the micro nutes... and about 2 weeks into flowering you want to use something with a very low first number and a high second number (phosphates) and again im not to sure on the last number i usually keep it around 5-10 and my plants do fine. I would wait a week or two befor you start any nutes though it seems kinda early