Well I did upgrade some , l bought a 2x4x5 grow tent, I still have that 2x2 grow box. I know I am going to catch hell for this for saying this. and switch to testing pH with bottle and drop testing, instead of electronic lot easier to keep pH, for me it is, my grow journal ,,, will say , Got lucky growing, ,,,,,,,,,, ingredients,,,,,,,,, lot of prayer, begging, talking,cussing at my plant everyday and a whole a lot o luck