NUTE OVERLOAD!! ppm question

[GhostBud420]

so i been flushing my plants with ph'd down water 5.7-5.9, im using mostly coco its the aeration formula botanicare makes. i also been adding a cap full of final phase to help break down the salts and excess nutrient build up.
Flush Day 1 - ppm going in - 320 - Run off = 1600+ppm
Flush Day 2 - ppm going in - 306 - Run off = 700-870ppm

how long should i keep flush the plants. i just entered week 7 of flower. and also how low should the ppms be to safely begin giving the plant nutrients once again at a lower dose.

 

[Silky Shagsalot]

you don't need any flushing agents. you also don't/shouldn't, need to be worrying about excess nute build-up, if you've been allowing for run-off when you feed. that's the purpose of run-off. 1600 ppm seems extremely high for coco. i rarely go above 900-1000 ppm. if you're doing your final flush, you shouldn't be adding any nutes.

 

[GhostBud420]

you don't need any flushing agents. you also don't/shouldn't, need to be worrying about excess nute build-up, if you've been allowing for run-off when you feed. that's the purpose of run-off. 1600 ppm seems extremely high for coco. i rarely go above 900-1000 ppm. if you're doing your final flush, you shouldn't be adding any nutes.

The reason i used a bit of flushing agent is because my root structure is overtaking the aeration coco mix. theres more root then coco at this point and acts like a sponge, i felt that it might help break down excess salts and nutrients. I have no water table so taking them out one by one after watering is a pain. I usually just water them until very little runs out the bottom of my pots into saucer catch trays.
Im currently on day 43 of flower so im a little ways away from my final flush.
Is my best bet to just slowly feed them nutrients and monitor them closely?..

 

[GhostBud420]

im not just doing a pre flush, there is signs of nutrient lockouts. The leafs on some of the main branches seems to be turning yellow starting around the outside edge of the leaf working its way in. since the flushing it seems to have slowed down or stopped. ill post pictures of the leafs if someone can identify the deficiency. or spot an issue

 

[Silky Shagsalot]

I usually just water them until very little runs out the bottom of my pots into saucer catch trays.
Im currently on day 43 of flower so im a little ways away from my final flush.

in coco, run-off is key. when you ay, "very little," runs out the bottom. there's your problem. allow for a good 10-15% run-off, and your problems should go away. if you're in day 43, then you should still be feeding full strength, although 1600 seems high to me. if they're not burning, then so be it...

 

[GhostBud420]

thanks for the help bro, hope i get this grow going well almost harvest time

 

[GhostBud420]

Watered them last night with 600ppm low dose note feed and 640ppm came out the bottom. Advice and flush helped a lot. letting it really run through the pot helped im sure. now time to turn the ppms up to 850-1050 cross my fingers and hope it starts bulking up

 

[Silky Shagsalot]

try the 850 for a couple days, see how it does. you don't need the high ppm's in coco.

 

[GhostBud420]

right on man ill give it a try

 

[Silky Shagsalot]

^^^wow! very nice, very frosty!!!^^^

 

[GhostBud420]

thank you sir cant wait to cut down