Yes. Those roots need to breathe. If your mix is not free-draining those plants might be essentially drowning. Humus/manure without an aerating agent like perlite is possibly badly hypoxic, especially if the present microorganisms are competing with the roots for what oxygen manages to get through,
That is a very high pH even for soil.
So changing pots and aeration of the grow medium needs to happen ASAP...
So better test equipment is need for ph calculation and this TDS thingy...
Maybe. It depends on some unknown variables. I’m going by guess and by gosh here. I like instruments; they narrow the envelope of possible issues.
So i changed pots today and the roots look extremely healthy... But they definitely needed more room... Talk about how root bound plant's growth could be stunted...ill check in on them tonight and let you know how they are doing