thanks Loc. I do have ph meter just dont have the EC meter yet. i really like to experiment more than just basic hydro. anywase, i got my eyes on the advance nutrient BIG BUD and the OVER DRIVE for the flowering stage. I'm just not sure if that will work or make any different since it is from two differnt manufacture...

i read on latewood's legacy: GH3 sticky thread..he mentioned that..he topoff with calmag+ or liquid karma in between nutes change..what does he mean by topoff?

thanks