Thats a good point.I never taught that would be my problem.

Im using Still Mineral Water.

Here is the nutritional information in Mg per Litre

Calcium 82
Magnesium 9.7
Sodium 23.9
Potassium 2.2
Biocarbonate 228
Chloride 41
Sulphate 10.8
Nitrate 5.0

I dont have a ph meter but this should be arriving any day now.
eBay.ie: 3in1 Hydroponic Plant Soil pH/Moisture/Light Meter NEW (item 280164139183 end time 27-Oct-07 21:48:44 BST)

Antone know if they are accurate.

Is there any type of water i should use while i am waiting?
privatepile Reviewed by privatepile on . Yellowing Leaves(I have researched) Ok i have a problem with my plants.The bottom leaves have started turning yellow. I have Top Soil(no ferts).The strain is White Widow.They are under 3 x 40watt daylight CFLs,They are a few inches from the plant. There is a fan blowing on them. To water i use bottled water so the PH should be fine. I have researched a lot and i think most of the time its nute burn. Rating: 5