RQS Skunk XL on Coco under LED

@Cheeba_Inu, yes, this helps, thanks a lot! I'll start using the calmag supplement tomorrow.

@ActioPauliana, sounds good! You're right that GHE is giving general advice about Cal mag, as a lot of people supplement it who don't need to. And they probably assume a lot of coco growers are using their coco line that doesn't need extra Cal mag as well. But Flora trio is great for coco with the extra boost. Cocoforcannabis has a great guide for how, when, and why to add Cal mag supplements if you haven't checked it out before: https://www.cocoforcannabis.com/needcalmag/ Since you are barely experiencing issues and don't have a lot of room to increase your EC you could start at a half dose and see how it goes. If the symptoms continue you can increase it. The older leaves won't stop showing symptoms, but newer leaves should grow in without the spotting/twisting/crisping . Hopefully that helps! The plants are most likely going to take off and explode with growth in the next week or so. Coco blows me away with the growth it promotes when everything is dialed in. Happy growing!

@Cheeba_Inu, thanks for your insights! Once again, you cleared a few things up for me. So, I wasn't 100% sure myself, but since you also conclude the symptoms are the first signs of Ca deficiency, I can no longer deny it 😏. And as you say: EC of feeding solution is already fine, given their age, so apparently I haven't delivered sufficient Ca to the medium and plants. After your post, I immediately ordered the GHE Calmag supplement. It will be delivered somewhere in the coming week. The next feed (tomorrow) I'll just use the supplement with high N. Still, it's weird tho. GHE stated on their website: "How to use GHE CalMag: Warning: Do not use with GHE soft water formulations, DualPart®️ Coco, or FloraNova®️: they already contain enough calcium for even R.O. water systems." They are also mentioning their Coco line, so maybe they are assuming people are using their Coco nutes if they grow on coco. But in that case, they should made it clear that when using the TriPart line on coco, a calmag supplement is necessary. By the way, I was going through the FAQ of their website and they stated the formula of the TriPart line is exactly the same in the USA and Europe. The difference in NPK values is the result of a difference between American and European legislation. That made me wonder: do they also sell two versions of Micro in the US (a soft and a hard water version)? However, I'm happy the products are the same worldwide: I was always very careful using feeding charts from US-based growers, as I was under the impression it was a different formula. But since the products are exactly the same, I can also study charts from US based growers. About the tapwater: there is about 40 mg/L calcium in my tapwater, but I'm not really sure if that causes the relatively high EC of my tapwater. Anyway, thanks again! 🙏

@ActioPauliana,Oooh Beth, is miss her so much. Walking Dead fan 💀 Sweet Zombie shall be called Beth 😘 Thank You 🙏

@CervantiS, haha yeah, calling them plant 1, 2, 3 just doesnt give them the respect they deserve :)

@Cheeba_Inu, thanks!

Thanks @HazeyBobby! I don't use a net, just LST and topping.