A good start is Flush them on the next watering with 3-4 times the volume of the sub with bout 5.8 -6.2 ph balanced water..that being when they are almost dried out. shouldn't need to water them but every 2-3 days with soil that drains well. Test ph of run off while ur at it. after that I'm too much a rookie with soil to give sound advice on next steps. maybe a soil wiz will get at ya here and set u in the right direction if you say pretty please. lol jk but in the meantime I would do a search in soil section or plant probs...mass of info. sit back, relax, smoke out and read. the info will come right to ya. See, reaper jumped in before I could even hit send.