I use Miricle-Gro Azalea food, because azaleas and cannabis have very similar needs. The seedlings need no nutrients for a couple weeks since the bean has everything that is needed to start. When you do add fert start with a 1/4 dose concentration once a week. Otherwise you will burn your babies.also anyone who is growing in the uk i didnt know what feed and nutrients to get so i baught miracle grow is this suitable for the plant