first coco grow ı need help

Roger A. Shrubber

Well-Known Member
there are damaged leaves, but this problem exists before those damaged leaves. I think it's because of too much runoff water. i was giving 1 liter 300ml runoff was happening
if you are watering to runoff every day, you only need to get about 100 ml each time, if that. i use blumats, and hand water to runoff once a week, getting about 250-300 ml from each plant, in 3 gallon pots (11.3 liters)
 

Forage

Well-Known Member
is low runoff ec not a problem?
I'll be the lone advocate of measuring runoff in coco. Everyone reputable says it's a pointless thing to measure and I'd take their word over mine, but it helped me a lot.

Yes, low runoff ec is a problem, but the way I'd treat that is to feed at around the strength you're currently feeding (2.4-2.6, I assume you're using the 500ppm scale). If it's good, it's good.

When your runoff starts to rise is when I'd pay more attention. My plants used to go to hell in the back half of flowering because of climbing EC. Now when my runoff EC starts climbing over 1.8, I drop my feed to 1.0-1.3 (and maybe flush a little).

Again, more of an anecdote than advice, and most people that disagree with me actually are better at this than I am. But sometimes your own experience goes against the grain.
 

calvin.m16

Well-Known Member
I personally quit doing drain to waste when I stopped running cheap fertilizer. In coco I put the pots directly into trays and will feed 2.0 EC 5.8-6 PH through all of flower.

I've had issues with coco not absorbing the nutrients when using risers and sometimes your fresh solution will pour right through the pot unless you take your time. I water until the plants have a little runoff in the trays then I shop vacuum the water out of the trays.

Hopefully this can translate good for you.. Cheers.
 

twentyeight.threefive

Well-Known Member
I personally quit doing drain to waste when I stopped running cheap fertilizer. In coco I put the pots directly into trays and will feed 2.0 EC 5.8-6 PH through all of flower.

I've had issues with coco not absorbing the nutrients when using risers and sometimes your fresh solution will pour right through the pot unless you take your time. I water until the plants have a little runoff in the trays then I shop vacuum the water out of the trays.

Hopefully this can translate good for you.. Cheers.
So your plants like more expensive nutrients? How do they tell the difference?

If the plants are higher up on risers they don't absorb nutrients as well?

I'm learning all kinds of new things today!
 
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