sulphate

I'm growing a lambs breath autoflower in a 5 gallon smart pot and my medium is Sunshine Mix #4 with organic dry nutes pre mixed into the medium. After it started to flower I top dressed it with power bloom and a week or so after that I top coated it with worm castings. I finally got my digital...

I just cheked the official analysis of the tap water here. It is 100 mg Ca/L. So when watering, my plant always get 50-150 mg Ca. The carbonate hardness is odH 18 and total harnedd is odH 23 Is that enough for the plants life cycle? Could use of calmag result in overdosing Ca, resulting in some...