Meters for PH and TDS (total dissolved solids)?
My new plants are dying, drying to death from the bottom up. I suspect TDS...Do you use meters? Which ones? Where to buy online? I found TDS meters from $12-$75.
I'm using (the best I could) Tapla's 5:1:1 mix:
5 parts Orchid Bark fines
1 part sphagnum peat
1-2 parts perlite (more like 2...)
1 T per gallon Espoma Organic Traditions garden lime pellets
1 T per gallon Ozmocote 14:14:14 controlled release fertilizer pellets