pics of the buds and one question>

Here you go guys, pics of my babies 3 weeks into flowering. Looking good, don't you think?







Less then 2 weeks till harvest for the c4.

Know the question, how would you flush before harvest, when you have different strains that will finish at different times? Help please.

Guess you guys missed the question. Please, how do I flush individual plants that will finish at different times. This is in a top feed drip and the c4 will finish a few weeks before the rest. I am using gh flora nova and kool bloom.