First time ebb and flow

HighTide Remo recommends 5ml/gal to start with the 2 part. Being my first time in ebb and flow and having a 40 gallon reservoir, I decided to start on the light side of things and drop the ratio down to 3.75ml/gal. Starting PPM- 49 ...PH - 6.8....adjusted down to 5.8 prior to adding nutrients. After adding, ph @6.1...PPM @ roughly 250. (Ouch!) Removed 10 gallons of water, added 10 gal fresh with ph @5.8 Ending PH - 6.0...PPM- 225 Before seedlings go Onto table I will re adjust reservoir more and drop it down around 150ppm. At the moment my tent is all seedlings and clones, so they are not actually using the reservoirs solution right now. Should be ready in another week or two to start the table. Until things are ready to go, I am using this time to figure out my average temps, humidity, nutrient loss thru Evap etc....