no problem, yeh i see lots of people using it for both meanings without specifying.
complicating things for people learning.
how far do you think you are from harvest? i usually give plain water for around 10 days. i dont think its a huge deal anyway, last grow i took a plant in late flower prettymuch a day after feeding due to hermie issues and it smokes fine very nice, no noticable difference to some "cleansed" plants that i chopped later.
id say its important if youre piling on the nutes near the end.
im curious what people do with hydro. id assume it would be strong feeds right uptill the end or near enough anyway. maybe not though