hi im sorry to bother you but i just got sensi grow part a 3.7-0-0 & b 2.5-2.2-5.7 advanced nutrients and miracle grow miracid 30-10-10, do i need both for growth stage or should i just use the sensi part a&b. i wasnt sure if the whole 3.7-0-0 and 30-10-10 matters, i mean is the cheap miracle...