Neville..dude you were stoned when you wrote this. I can tell. Actually in theory, there's some accuracy there. When you water to runoff...the runoff ppm will be close to what you put in...unless you have some nutrient build up. In which case runoff ppm will be higher. Possibly even way higher...indicating a rootzone problem.
NOT EVEN CLOSE...
Nope not stoned. My runoff is consistently about 300ppm lower than what i put in. And when my room isn't in balance like if my temps, humidity, or when i feed too much or to little my plants use less nutes. I can tell because the ec of my runoff goes up and if i don't fix the problem my run off continues to get higher. To me this seems like an indication of the plant using nutes. I have no evidence but i would bet if i supplemented co2 the difference between what's feed and the run off would increase.
Max Flower feeds are 1.2 for me, veg .8-.9 ec.
You honestly believe your plants take in more nutes than water?? That's the ONLY way your EC would drop. As the plants "drink" the salts levels increase between feedings.
Well if its not the plants idk where is going because my run off is consistently lower than what i feed. And i dont have salt build up so its not in the medium, where do you think the nutrient is going?
That might be possible. I do prefer to feed light rather than heavy.
That's backwards. Lower in high temps, plant pulls more water.
Whats your nutrient/water temps. And the pots way to big for the plant size. Its struggling to get oxygen in the root ball. I recon start some new ones and repot as following, start in 6 inch pot, repot to 10 inch then what ever size you decide to flower in. This is done all in veg. Make sure the leaves are well past edges of the pot before repotting. Also let the pot dry out before repot so the coco dosn't fall apart and damage roots. To try fix your current plant it really needs a good dry out (this could take 3-4 days looking at how big those pots are) to get the oxygen in to the roots then Feed it 1.2 ec untill you see run off then stop. Let it dry out again keep repeating. Dont worry about the plain water untill it gets big enough for that big pot. The nute at 1.2 ec is quite week so it won't need the plain water. The plain water helps when they're big and flowering and can dry the pot out quickly..
I don't do any of that stuff. I grow in straight coco. No calmag, silica, or anything other than base nutrients. If your base uses calcium nitrate for it's nitrogen source there is plenty of calcium without adding calmag. I never run plain water through coco to flush anything and I've never used a product such as floraclean. The results are great. I don't believe in using unnecessary products. I feed 800 ppm strength at the peak and taper down to 1/4 - 1/2 strength by harvest. I feed until chop and never flush.
Very accurate. I wanted to call a few people out, but I frown upon that kind of thing.
I feed my coir plants with a max of 550 ppm (1.1ec) in bloom. veg is around 400 ppm.
Why? Because of the cannabis nutrient industry and their marketing. They sell cannabis specific nutes whatever that is and they have convinced people that cannabis is a special plant that requires fairy dust to grow. You don't need to treat cannabis any different than other plants. The forums are filled with people experiencing problems even though they're using a dozen bottles with fancy labels and cool sounding names that they sold a kidney to pay for.