So.... i used the epsom salts and all was fine leaves looking lush and healthy then switched over to flower....guess what?? deficiency back and the epsom salt now isnt doing the trick, have been feeding with epsom salt since previous problem and scince ive learnt bio bizz nutes lack in magnesium?! Worried i may have salt build up? maybe resulting in nute lockout.... can you overdose on epsom salts?