I hardly ever check the runoff of coco. It can be deceiving as to what is actually going on in the media. If fact I dont water to runoff either.
I use Jacks 321 and feed every day. If I see nute burn, (Rare), then I give plain water for a doy or two. Just pH the solution going in to 5.8 and keep the ppm under 1000, I actually feed at 450 or so. I do ok
No, Only during the hydration from a compressed block.
In my opinion, CalMag is not needed during a grow. I quit using it years ago.
There is sufficient calcium and magnesium in cannabis plant foods. If you see a problem its probably a pH issue and its being locked out from uptake.
I have used several nutrient lines. Jacks 321 is my current one. Easy, cheap and few to no problems.
Thanks for your input. I didn’t add any cal/mag during my first grow. I used TPS One throughout out the grow. With my new grow, I am using the same, but I am going to add TPS Billions every 7 days as well.
Coco is an amazing medium to grow in!! So forgiving.
You can’t overwater it, (by hand) I assume you sleep lol.
Measure your input and measure your runoff those two numbers will tell you exactly what going on in the medium. As you get more accustom to coco you will stop checking runoff and just know.
Water daily! Don’t EVER let coco dry.
Don’t let your runoff be more than 300 ppm of your input. If it is you need to either lower input or water more frequently, you will need make that decision as what’s truly need to happen.
If anything ever goes wrong with coco just water water water until it’s right. (With nutrients)
Day 45 from seed
I started my first grow Dec 1998 only reason i remember is because i got my first setup for Xmas… thats back when i had to order seeds from Canada via snail mail…
One question.
If my IN ppd is 1900 and OUT 2200, or even 2800, should I feed them again next time after 2,3 days, or should just watered them and check if ppm out is lower than 1000?
Sorry it’s been a crazy busy day at work, I’m not familiar with that soil but if it’s all organic inputs and no synthetic fertilizers have been added, that’s not an uncommon ppm. 4000-5000+ is pretty acceptable for organics.
Yes it’s organic, very hot soil, no need for nutrients for at least 6 weeks.
In that case flush is not necessary, I guess.
Plants are doing great otherwise.
Yes plants do look great! No flush needed. I know it gets confusing because there is so many different types of soil(medium) to use and each one needs to be treated differently.
With organics I don’t recommend watering to runoff, just good clean water with a ph of 6.5. If you’re using RO or dehumidifier water you will not need to ph. Just keep up with the feeding so they don’t run out.