Winter Blueberries (Seedsman Auto)

Day 8 (Friday 11/13/2020): I need to figure out what causes Ph fluctuations. The water was perfect going in last week, but I checked it before changing it, and the Ph had gone all the way up to 7.2! Later on in the grow I assume the plants themselves affect the Ph, but I can’t imagine three little seedlings could alter things that much?? This week we’re starting out at 5.72 Ph / 473ppm. I added less FloraMicro than I have in my past 2 grows, since N toxicity seems to be a recurring problem. Day 9 (Saturday 11/14/2020) It’s getting really dry now that it’s cold out and the radiators are on. I’ve ordered a small humidifier. Day 10: (Sunday 11/15/2020): SO DRY. I keep misting the room with a spray bottle, but it doesn’t help much. And the Ph is up to 7 again! Added half a capful of Ph down. The ppm is down, so they got their nutrients at least. I’m adding a 1 gallon water reservoir, so hopefully keeping the water level steady will prevent the spike going forward. Day 14 (Thursday 11/19/20): the ph only went from 5.6 to 6, so the addition of the reservoir seems to have helped!