Apartment Vegetables

Yep, not weed. But hopefully interesting anyway? Water change today, it's been 2 weeks and the 50L reservoir is looking a little cloudy with mild odor but no particles or visible algae. Free chlorine was measured after last change at 1.85 PPM (5ml of 8% into 50L) and then I had topped up 2ml after a week. Plant Observations: Tomatoes are showing yellow spots on older leaves from the center out, I'm guessing a Nitrogen deficiency and increasing my Part1 from 80->100ml / 50L this time. Peppers are flowering well, I'm shaking the tree twice a day and there are about 10 chilli's starting to form with another 30 odd flowers remaining. I have two tomatoes in Black Swallow soil using the hydro water for comparison against the rockwool tomatoes and currently the soil plants look much healthier. Water Change: * Drained 95% of the water * Added 5ml of 8% chlorine bleach to the remaining water * Calibrated Hanna HI981420 Probe * Added water until ~50L total in reservoir * Added 100ml of Green Planet DF Part1 and mixed * Added 40ml of Green Planet DF Part2 and mixed * Added 6ml of Green Planet ProCal and mixed * Added 12ml of Standard Hydroponics PH Down (~8.0 tap) Status: Expected Chlorine: 1.75 PPM (0.05 PPM tap + 5ml into 50L) Measured PH: 5.72 (Hanna HI981420) Measured EC: 1.61 (Hanna HI981420)