Raise or lower ec after defoliating? (Hydro)

Hi guys would you raise the ec after defoliation drop it or keep it the same.. I'm running hydro nft ec currently starting at 1.4 but its slowly droping so there eating well just not sure if to keep it the same raise or lower..read mixed reviews

I’ve never changed my EC.

Unless you did something silly just leave it the same if the plants are happy.