u/BramVermaat

Hi,

As the title states. I'm using Atami B'cuzz Silic Boost as my silica supplement. The dosage is the lowest I've seen in any additive (0,1 ml per liter). The EC of the product itself is about 3 EC, however when I add it first to RO water (0,0 EC) the EC doesn't inscrease. Not even a bit. After adding the recommended dose the EC is still 0,0. However, it does cause fallout if not mixed properly like all silica products do. Does anyone else use this silica, or can explain to me how this works?

I'm getting quite annoyed at this. I've been religiously studying all the info I could find about Coco coir and how to grow in it. However, every grow, I do get the same issues. Around week 3 flower (I would say, always a guess with autoflowers) I'm starting to get rusty spots. I don't want to sound like a broken record, but it does look like a calcium deficiency.

I do always double buffer, at 2 EC calmag before starting my runs, rinsing this out till the runoff is 1 EC. I'm really trying very hard be on top of my game. I run high frequency fertigation with drip 6 times per day at this stage of the grow at 800 ml of pH 5,7 1,6 EC with about 20% of runoff at the end of the day, that being 1,8 EC and 6,1 pH usually. So I don't really get it, honestly. Nothing fancy TA calmag, to 0,4 EC, then adding CANNA Coco. But consistently, no matter the strain it starts like this. But I am sure it will be a lot worse in 3 weeks, because that's how it always goes.

Sure, the product is okay in the end, but senescence will not finish nicely because by that time the leaves will be quite crispy. So, what can I do to improve or hopefully fix this?

Thanks guys.