After researching my water quality and content, I decided to go back to tap water since it has decent CA and MG levels. I'll top off with RO but base nutes will be prepared with tap.

Yesterday afternoon I mixed new nutes as follows:
Tap water, 3 gallons = 315 base PPM
added 3ml Zone root conditioner, raised to 318 PPM
added 15 ml Liquid Karma, raised it to 405 PPM
added 15 ml Sweet, raised to 520 PPM
added 30 ml Pure Blend Pro Flower, raised to 925 PPM
had to add 4.5 ml Down to get PH to 5.8

Today I checked it and PH was 6.3 and PPM was 1081. Added approx 3 ml Down to get it to 5.8 PH, and left nutes at 1081 until this evening when I take further readings.

It's been approx 18 hours since the nute change, not noticeably change for better or for worse yet. I'll update again this evening.

And yes, advice is welcome if you have soem for me!