I love rollitup forum...been part of most all of them, and RIU has a classy pack of weedhounds...ANYWAYS, wait for hurricane Irma to come more north in the state where I am and medicating my nerves with some Incredible Bulk (wonderful indica meds), and surfing my fav topic...I Had to comment on flushing..IMO, there are a lot of facts that arent recognized....it seem historically, many ppl feed heavy nutes to assure there plants have all they need...They ARE CAPABLE of high doses but not constantly...So, ppl get in feed, feed, flush, or similar nutrient regime...I the 25th of this month marks 38 yrs since my 1st hydroponic garden...THE BIGGEST mistake I see newer growers, and even mid level growers, do, is overfeeding.....I dont remember the last time I had the need to feed my plants more than 600ppm MAX, and typically about 500ppm...DWC can even be done a little LESS THAN THAT....A plant PROPERLY grown in a hydroponic system WILL BE growing at 90-100% of what that partucular strain, phenotype, and even a specific cutting, is genetically predispositioned to do...Sorry soil growers, but hydroponics offers a precise menu of nutrients, with a perfect ratio of elements, already in their salt form, and immediately available to the plants...Soil, depends on a lot of variables, like microbial activity, to assit in breaking down organics INTO their salt form...this will NEVER HAPPEN as precisely as a balanced hydroponic nutrient, AND when you in the thick of flowering, and your in moderate size containers indoors, you soil is getting somewhat depeted and u have to suppliment anyways, with a quality hydroponic nutrient.....
Now for why I started this response about a flushing question....Once you learn how to read you plants, hydroponics requires a very moderate feeding program...I NEVER increase my nute when the plants look good and are growing nicely...IF THEY show the 1st sign of needing more, feed them a little more....Once you know YOUR plants, providing you have been paying attention, you Already know the amts that keep them pretty and at what stage of growth....Now, if you have not been overfeeding them, they have no buildup and basically none in reserve (they dont need reserve if your doing your job)....NO NEED FOR FLUSHING...when I get down to 2 weeks prior to harvest, I cut my nutes in half...Since I have not been overfeeding them, they almost IMMEDIATELY show signs of deficiencies...I want that then....for the last week, I completely withhold nutirents...by then they have yellowed and by harvest, there is only light green remaining in the buds inner leaves...Sweet as candy...If I completely withheld nute 2 weeks out, it would be too early and TOO MUCH yellowing occurs...Small inner leaves (covered with trichs) would yellow, die and break off..the ultimate, is when the yellowing is just occuring in the main tops...all the other leaf will already have yellowing cometely and or dropped off...flushing is for plants grown TOO RICH for too long.....Learn to read YOUR plants and how to feed WITHOUT a TDS meter...feeding charts are generic, dependent on much..and IMO, too high....when u can consistently grow quality buds WITHOUT a TDS meter, YOU HAVE ARRIVED...regards, Y.T...cpl pics for credibility..current full crop (mostly THC bomb)...previous crop of White widow and Cheese candy...these are in a slightly modified Hempy bucket...went back to that after years of water culture...
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