Cheers for the reply eyes! I tried to get hold of some GH calimagic(or whatever its called) but cant seem to find it anywhere in UK? Only in US. Also i would think the same with humboldts..but i do want to be 100% organic so do wanna switch up my cal-mag supplement and don't want to constantly use molasses like you said.hey kannibisking,well the only two that Im aware of(may be others) are the general hydroponic Cal-Mag+ and humboldts Equilibrium.they both lend to organic and TLO friendly growing.I personally like the equilibrium over the cal-mag+.I just think it lends a little easier to organic growing.if your using chemicals and organics thats typically a no no.but if you feeding from a bottle and it says organic and your pretty sure it organic Id say get a more organic friendly cal-mag product.but thats just me.but all in all you'll prolly be alright using the two.unless your really trying to go 100% organic.then Id say no way n get the GH or Humboldt."My 2 cents" :smoke: