Ludacris is right mg suck's,you can however if you are mad enough to do so,pick out all those little green balls in the soil,they are the mg time release feed capsules,go soilless mix the next time,like what ludacris said,i use 1/3 peat moss 1/3 perlite 1/3 vermiculite,ph is alway 6.6 when i mix...