T
TryingToGrow
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I just tested my coco and what you said and there was very little difference. maybe 0.1ph got me to 6.3-6.4, using 6.0 water. So I tried lower ph water, just quickly mixed 4.1 or so and it got me to about 5.6. I think coco moves a lot easier than soil, my test with that have not been so much movement in ph.How did you test the PH? Personally, don't worry to much about runoff PH in Coco. I'd do a slurry test for a more accurate reading but even then your chasing your tail. I run Canna, straight out of the bag, no prep work required. If my medium came out at 6.5, I'd probably just flush 2-3 times the pot volume with the the EC and PH I wanted, then transplant. Water the at least daily, with a little runoff, once you have established roots. Make sure the coco is always moist and you shouldn't have any PH issues.
What makes you say the Bluelab soil probe is inconsistent? I find mine to be extremely consistent.
FWIW, I'm on my first grow using Canna coco and this is what i see. The coco always wants to drift back to around 6.2 pH. I feed multiple times a day with my feed pH at about 5.8, give or take. After feeding the media will be at around 5.9 pH and will gradually drift back up to 6.1/6.2 over the course of a few hours. This has extremely consistent and I haven't noticed any problems whatsover. Honestly, I think you'd be fine if you feed around 5.7 pH and let the media drift to 6.5.
Also, as my reservoir drains, my feed pH will rise to around 6.0 or so. Again, I haven't noticed any issues.
To prepare coco you perform the following;
create a batch of ph water at 5.5, if you are adding more coco to a current grow then make sure the nutrients are also mixed with that ph water.
Let the coco soak for 10 min in your mixture. You want to make sure that what you are putting in is coming out. So, your run off should be the same ph and ec as going in. The drift of ph is because the plant needs different nutrients. You also feed coco couple or multiple times a day.
Slurry mixture is best used for soil not coco
in soil?? you said you had coco? also, if you have a ph pen and a ppm pen you can do a slurry test. You don't need anything else. Not sure who is feeding you what type of information.Hi
Thanks for taking the time. For my coco it seems I will have to use lower ph water, 4.5 ph or so. I may end up having to do something like this, thanks for the ideas. It seems to me, just in the process of trying to keep the coco at 5.9-6.0, there will be plenty of drift haha. Mine naturally wants to be to high and I am trying to bring it down, so it must be always changing to some degree.
Just feed nutrients, water or both? I have a seedling right now and the coco is already wet with nutrient, do I need to feed it again? Seems like a lot for little plant
I looked at slury test and it takes to much time and some people say you need 'special' tools to do it. I just do runoff test with water that is 'target' ph and then squeeze the water out of the coco/soil and test that also to make sure the same. Works very well
Going to do some more research and see what people are using to bring down ph in soil that is to high so I hopefully don't have to ph my water down every time.
I have organic soil and coco, I need to bring down the ph for both, now and in the future as well it seems like.in soil?? you said you had coco? also, if you have a ph pen and a ppm pen you can do a slurry test. You don't need anything else. Not sure who is feeding you what type of information.
I wouldn't overthink it. I'm not sure what brand of coco you're using but as long as you rinse and buffer it (if it's not already pre buffered), you should be good. Just feed it with nutrient solution ph'd around 5.8 ish. I've even fed with nutrients ph'd to 6.1 and the plants never skipped a beat.
It seems like the trick is to keep the coco from drying out once your roots are established so that you don't get salt buildup.
I wouldn't overthink it.
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