Mephisto 2 Strain RDWC

We're going to call this week 1 of flower, the plants seem to be hitting their stretch and I'm seeing the start of more than just pre-flowers. My Jammys are looking really nice and I'm super happy with those. One of my Mango Smile crosses is just fried, and with the RDWC I don't see a way to get it out of that spiral without hurting the other plants so we are just going to let it ride and see how it goes. I can always kill it if I need to. PPMs are going up around 600 this week. The plants have been really hungry aside from the last few days where it seems like they have just been chugging water, making the PH really low. Before I went to bed last night the PH had swung from 5.7 to 4.7 over about 12 hrs. After adjusting last night it was similar this morning so I am working on a rez change right now. I'm also flushing my system for a few hours with PH'd RO water and whatever was left in the buckets from when I drained it. I probably should have done a res change a bit earlier, the PH fluctuation / lack of needed nutrients in the solution seems to have fried a couple of leaves on the Jammys, I'm not going to stress it though as overall they are looking quite good. We're at about 40-41 days from sprout on the Jammys and a couple of days less for the Mango Smiles. I went through and gave the plants that are doing well a bit of a trim job, cutting off the lowest branches that won't do anything / aren't getting any light. You can't even really tell on the Jammys, they filled in very fast. The back right mango cross looks a lot different though, it's the one I didn't top and was growing in very tight and close together and was really needing the cut. This week I've also included a picture of my Home Assistant dashboard that I use for monitoring the tent, and some automations like light timers and exhaust fan control. If anyone has any questions about that I'd be happy to give more info. I use an inkbird humidistat / thermostat combo for temp / humidity control and an Ecowitt GW1100 for getting temp / humidity values into Home Assistant. You can see the sensor bundle hanging around canopy hight behind the plant in the first picture.