if they are still clear,and you are not in a super big hurry I say wait till they start to turn more cloudy/Milky then start your flush imo.I find in my doing that,by the time its good n flushed in two weeks,my trics have gotten much deeper cloudy white and some amber too.but all upto what your looking for."AFN smoke out" Ive had decent luck Using CO2 enrichment at the first couple hours of lights on too.:smoke: