How To Use Progressive Web App aka PWA On 420 Magazine Forum
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I called up the hydroshop and it was a false alarm: all their coco-mixes say also soil on it, because they were too cheap to have more than one version of the packaging printed
But by the batch number they were able to tell me, that I did indeed get a coco-perlite-only mix. So no soil...
I also compared some photos of soil and coco-soil mixes, and what I have really does seem like coco without soil.
Anyways, watered them again today (now again with pH 5.8 water). Will try to post photos again tomorrow or the day after, though there hasn't been that much growth...
i would start by giving your plants 1/8 strength nutrients now to help with the yellowing.