The same as any other soil. Make sure they need to be fed or run the risk of burning the shit outta them.Hey guys I just put.my 2 girls in to 12/12 3days ago I'm using.mg potting soil and I know it shit but it was.my first grow and I messed up I'm using pro mix and biotanicare pbp next grow but I need ideas for nutes to use for my mg potting mix because my girls need some food