Yes I have a water softener in my house which adds sodium to the tap water so it's not good at all. How much of the calmag plus should I add per gallon and how often show I water with it?

Oh, and I'm using fox farms ocean fresh dirt and fox farms nutes. Per the companies instructions I've only fed them once so far using grow big and big bloom. I used half the dosage they recommend and still I noticed that one plant got a little burned on the tips of the new growth. Plants are on their 17th day.