Also, and not quite sure… but the bottom of your tent looks filthy and the pots look like they are on the floor with nothing to lift them… I have the same situation where the water goes all to the floor, hey it has a bottom liner for many reasons and I assumed it was one, but I wouldn’t think that it could be good for your girls to have any of the water off the floor being soaked into the pot. In the future, ditch plastic and go with fabric or the weird plastic ones that have cones forming out the sides (air pots?) and make sure they have some clearance off the floor. At any rate, @Shanewise23 Dial back the heat some I would think 87 is a little high for their current condition and that is way out of line for VPD
I really can’t imagine that the soil meter is worth it, just saying I haven’t seen any say it helps for accurate testing. If you want to test your soil, and you should considering the non-cannabis friendly brand, with a slurry test (look on youtube or search the forum). Your water measurements seem strange too 4.5 PH 135 PPM and an Ec 272. Maybe water where you are IS that acidic, but are you ADDING fertilizer then giving us those measurements? You should either do the slurry or at least a runoff measurement then give us the numbers for the water in/water out or what you find from the slurry test that should help determine if it is(n’t) lock-out. If your water is that acidic though, maybe try leaving it sit for a bit then test it again before putting in nutrients, retest, then add nutes. One more thing on the tests/measurements… you aren’t doing them all with just that meter in the soil right?