My tap water contains chlorine so I don't add additional. As for chloramine I don't think it will hurt you either but that's only an educated guess. Try swapping out from RO to tap and see. Also drop your nutrient PPM and work up as you experiment.Our water is comes from Lake Ontario. Iron is .0063 mg per liter so less than 1ppm. Calcium is 35.6 mg per liter. If you're using straight up tap water do you also add chlorine?
That will get rid of chlorine which if you are running aseptic hydro is a benefit to keeping your reservoir clean. It won't get rid of chloramine. You need to use thiosulfate to remove chloramine.If you don't let it sit for at least 24 hrs