lol right? well im looking into this as possable a career option (my own despensery or somthing along the line of med problems) so im studying my grows haha and yes its bat guano just sprinkle it on top of the soil befor you water haha ...and as for if you should get them i would say go for it im doing my 1st grow without but my soil has bat crap and worm castings ...and as for the mg nutes i would be careful mg products tend to burn them easly if you over do it...