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COCO COIR Wtf should I do?

J

JayGee

New member
D63

Here's pics of the 2 plants having issues. Runoff ph on the #2(which seems worse) , looks fine. The Dinamex is acidic though. Should I only flush the Dinamex, since it's PH is the only one that is low? The leaves on the #2 seem to have curled up( which I thought may have been too much light). My gut says to flush the Dinamex and watch #2. Would it hurt to flush #2 or would it only be worth it with a lower PH , or confirm it with an EC meter( which I don't have)?
 

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It is no problem to throw a extra flush in so I would suggest just doing both.

Cut the crunchy leaves off your plants and open them up.

Sometime those drops can be hard to read, a ph meter is worth its weight.

Ec and ppm don't really matter if your PH is off and is just another thing to learn and confuse you at this point.
 
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If you water every three or four days in coco you nutrients build up and will cause a lockout ,the ph also drops to around 4 ,at this point I would flush until the ph is correct and PPM is correct, I would flush once a month to avoid this lockout
 
Omg! that's the exact same thing that's happening to mine. Mine are doing the exact same thing starting from the top and I thought it was light. But it isn't. You can see pictures of mine in the post about nightmare in a 12/12 room with water in or something like that. I don't grow in Coco, the ones that are having issues are in promix. I did flush the very worst one, and the pH of the runoff was 6.5 which in a soilless mix isn't bad. I don't know what to do because it's happening to all four of my plants in the 12 12 room.
 
I'd say having a digital pH and TDS meter is worth the cost. I got literally the least expensive of each and have found their (relative) accuracy to be very beneficial in assessing the root health in my coco. I am only 4 weeks in - early flower on some autos and almost halfway of my veg time in a couple photos- and have learned that each plant really requires it's own care vis a vis pH and TDS. It's a pain in the ass, but I feel on top of my problems rather than blissfully unaware of a lurking crisis that will strike at a crucial time.
 
I ordered an EC meter. As for now, can I use the PH of the runoff as a rough guide on EC? The Dinamex runoff is still lower than inflow ph.
 
I don't think there is any necessary or implicit correlation between pH and EC. My plants with salts buildup are getting fed in the mid-upper 5s pH and 750-900ppm and are running off at upper 6-low 7 pH and 1800-2200ppm.
 
Giving us a number would be helpful.. Imo you don't need a E/c or ppm meter at this stage as there is nothing to fix and you will only make it hard on yourself try to Implement a new tool in a grow that's ending
 
I have strips, so there isnt a specific number. I was told that a decreasing ph in runoff is indicative of salt accumulation.
As for the meter, I know itv won't be off much use this grow, but itll help me avoid these problems next one.
 
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