Is 650 ppms out of the tap ok for tomatoes in recirculating DWC
This is my first post. I have set up a recirculating deep water system outside in five gallon buckets to grow tomatoes for the first time. I put 12 plants in 2 weeks ago and they look very happy so far.Have been mixing well water @650 ppm with RO water @ 100ppm to about 350ppm.Is this necessary or can I grow in straight well water @650 ppm.I am scared of getting nute lockout because of too much calcium. Thanks alot.