i had the same question, do you need to flush when using all organics??? im 24 days into flowering, using Fish bone meal and about to use some earth juice bloom. from what im reading on this site, and other sites, i probably dont have to flush........i have a question tho, are you supposed to starve the plant before harvest? meaning not water it for a while...? i dont know what im talking about, can somebody explain to me....? thx....