I went shopping today and got me some things: Bio Bizz Bloom, Bio Bizz Grow, Bio-Bizz Alg-A-Mic, Bio-Bizz Topmax Organic Bloom Stimulator, Checker by Hanna (Digital PH tester), P.H Down phosphoric acid, P.H Up potassium hydroxide, P.H 4 Buffer, P.H 7 Buffer. I got my Bio Bizz from www.GroWell.co.uk and am waiting for it to be delivered, can't wait. I got my p.h tester from a local shop and i'm not sure i needed it?? I'm growing in soil, and i can't check to soils ph with it?? Since getting it home i read in some posts that i shouldn't use phosphoric acid and potassium hydroxide in soil as it will kill the roots of my plant and all the things that live in the soil?? Please help, i just want my babies to do well, Thanks for all your help!!