Critical Kali and juicy fruit cage match

Given the sad status of our mummy we added our fifth seedling that had been growing in soil at the window. My wife refused to give it up when we narrowed it down to 4 seeds so we washed the roots of and stuck it in with the others. Also believe our mummy may have been due to ph issues. Compared our meter to a liquid ph test which implied the meter was off by at least 0.7 putting the water below the normal threshold. After recalibrating the meter and dropping tds a bit it does look better. Whether it yields is a different question. Topped plants looking decent and recovering nicely. Mummy isn’t really getting much better. Any yield at all on that one will be a win