Low ph runoff coco

Icr

New Member
Hello I am new this way, I have a problem with my plants. I am watering with ph 5.8-5.9 ec 1,7 in flowering and the 4,6 drainage is of ph ec 1.9. Use water of at least rested faucet 24h, the Coco a+b, the Coco to booster and the stimulator Coco bloom of b´cuzz. The water of my zone is of 384 ppm (0,6 ms/cm) when hard water no cal / mag use. ph I regulate it with ortofosfórico acid after adding the nutrients. I badly feel it by my English.
 
How often do you flush your plants? It's easy to get salt buildup in coco, if you aren't flushing every few waterings every time you water you're breaking down those salts and lowering the pH, which is why your runoff pH and EC are so high
 
I grow in coco and I like to put at least 5 or 6 gallons of fresh water through the plant every other watering. I generally will just stick the plants in the tub and constantly pour water through them, and after that I pour in a gallon of pH'd water with nutrients. The flush water you use won't be too important as long as its drinkable, just make sure you follow that up with pH'd water.
 

Icr

New Member
urban1026835, johnnyslatwords thank you for your post

I usually do weekly flushing and correct the ph of the coco, but few days back down. Irrigation 1 time per day with about 150ml / plant pots are 13x13 (0.5 gallons).

The roots are healthy are white, also use enzymes to help that.

You may need to use cal / mag for the ph buffers and not down? I use coconut canna professional plus is without adding anything.
 

SnapsProvolone

Well-Known Member
With coco I have always used a higher ph nutrient 6+ and let it drift down to 5.8 at runoff.

Flush with tap water and when watering you want significant drainage to rinse any salts so as to minimize buildup.
 

Icr

New Member
In theory when there is an accumulation of salts the pH tends to rise and not down?. I water with pH 5.8-5.9 in bloom and runoff is 4.6.


When I do a flush coconut ph is correct, but after a few days back down. Is that the problem is that it breaks the coconut buffer and therefore lower the pH, but not how to fix it.
 
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