Yellow light green plants

So I had a pH problem for some time was giving plants water at way too high of PHI fixed the problem repaired it in new organic soil That feeds for 30 days been given plane our oh water pH properly with Cal mag and I am not seeing no changes in the plants yet I wonder if I cut clones off of them and trim up the dead tips if I can get the clones to route as well as have a new growth on the plants grow back healthy and green

Soil corrections are not always immediate; be patient. And yes, you could cut clones and yes, where you cut them, you'll probably end up with new growth. Good luck.