General question about watering with well water

Hey fellas... Maybe someone has experienced this along with me... Quick rundown: indoor grow under hids. Fox farms happy frog soil. Mothers in 3 gallon containers flowering plants in 1 gallon pots. I have well water that comes out of the tap at a ph of 6.5. It also goes thru a softener..i didnt want to stir up a hornets nest and buy water or haul water. I figured the well water would be good for them...my flowering plants seem to do great with my botanicare nute lineup. However now im into a 3rd cycle with the mothers and ive noticed some nute troubles. Brown spotted leaves, yellowing up top and bottom randomly... Just curious if put in a sediment filter and a tap before the softener if that water would be better for my girls?? Thanks for your help in advance!!

ph looks good. What's the ppm's of your water?

Ive got a ppm meter comin in the mail but for now i am unsure...anythng to look for when i get it? Or does the local hydro shop do like water testing?

And another thing...ppm means parts of what per million? Maybe a stupid question...lol

Total disolved solids.. Usually a ppm around a 100 is good.
I would try straight water without any filtering see how that does. The problem with distilled or filtered water is that it's stripped of a lot of the micro nutrients your plants need.

Ok cool, ill check the ppm of my water before the softener. Im on the right track doing away with the salt water right? Thx again!