get a meter that reads ppm, ph ... some read temp to but i dont know if thats really nessisary still new ............ i am going to head down to my hydro shop tommorrow .... i dont want to spend the money but i need to 6inch glass tube and cant find it anywhere, i will get all the info on that hanna meter i was talking about if your still intersted.
I am looking forward to seeing your plants recover man dont give up on them they will come back even if the nugs are not top shelf they will finish better then they look now ..........i always remeber this its in tons of threads........THEY ARE WEEDS...... and weeds are strong and you will be surprised what they can go through.

4 GTO