biobizz all mix. is has been used befor tho but i flushed it for a week and removed all the root. i gave it its first feed today as i was only using water so it didnt hurt it but can tell it needed food as the lower leaves were lighter. i reckon i will go all hydro next time as the responce is alot quicker and the oxi kit is only £25 so will prob buy another 1