Are you from the future?
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LOL - not meā¦ thatās John Titor 
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Good movie.
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Cannabis hyper accumulates heavy metals. Without proper macro nutrient ratios Marijuana will kill itself to detox the soil of metals. Sadly most hemp has been inadvertently bred to keep toxic heavy metals in the roots so the soil is not being cleaned. You thought the Medical Marijuana genes sucked, the Hemp of today is useless also.
Donāt blend nutrient brands because
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Most fert brands donāt understand Marijuana in the first place.
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Brands arenāt required to label maximums. The ones that work have hidden ingredients. Calmag with FeK for example.
The āMulder chartā for Marijuana production is complicated, but it makes sense. Unlike any Mulder chart off the web. There is no Ca:Mg ratio for Marijuana or Hemp. There is a Ca:Mg:Mn:K:P:Nitrate/Nitrite/Urea/Ammonia/Glycine/Mo/Ni/B/Co ratio.
The most efficient forms of nitrogen cause the most antagonism which is why lots of brands stick with calnit and bug/mold spray vs growing quality. If a fert brand canāt figure out how to make money off of quality instead of infestations: (any brand using calcium nitrate) avoid.
Best to buy the most expensive brand of weed specific nutes and settle for mids because no one here will help you make cheap quality nutes that express the true generic effects.
Lot of you guys seem like you have a pretty thorough understanding of ratios. Can anyone recommend a good resource (preferably a book) where it goes into detail regarding ratios amd whatnot? I know its probably a stretch, i always knew that ratios are important but never understood why. Would like to learn how to tinker with it during various growth stages.
Also, does anyone know the magic behind certain coco nutrients ability to self buffer ph
So, not even you?
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@Stokes my mapito topic at the end talks abit on ratios at different plant stages
You may have to scroll back up abit past some recent chatter
: )
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If youāre referring to Advanced Nutrients pH perfect, they have a component that chelates the nutrients and make them available to the plant without having to correct pH if your tap water pH is not clearly out of whack ā¦
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Yea i love AN. Mega crop does it too
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Youāve definitely piqued my interest 
Would love to hear more about your version of mulderās chart for pot. Anything in particular that lead you to figuring it out?
Heās already been suspended yet again, looks like, but hereās the chart FWIW. No idea how accurate it is, like most things coming from him. He spends so much time trying to establish that heās a genius and everyone else is an idiot, he forgets to actually say anything else - or heās just actively trying to sabotage us. Tough to tell the difference, for me at least. Iād recommend taking this with quite a lot of salt, since without knowing whatās truthful and whatās sabotage itās not particularly useful.
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I use this chart instead, a bit less dense ā¦ 
Yep, thatās the standard one. To be fair, Iāve seen a few sources saying boron is a precursor to calcium since then, and when I started using a micronutrient package with boron my calcium deficiency got a lot better and my stems stopped being hollow. Thatās the only reason Iām not saying to ignore it completely; for all I know, half of what heās saying is grounded in sound science like that and half of itās to troll. Maybe all of itās sound science. Maybe none is, itās just a coincidence, and itās another micronutrient entirely besides boron thatās fixing my problems, or not a micronutrient at all. 
If anyone out there fully understands soil science, itās certainly not me.
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Just following along with this and noticed you had just started adding the cal mag to you mix. Be careful the order you mix cal mag into your resivor or feed can for watering. Calmag can Clete your nutrients. I have not tried the exact manufacturer or recipe you listed. Calmag definitely should be mixed first into water. It bonds to RO water especially making a chain to build onto with other nutrients. This is true with any tap or RO water. When running Coco I definitely treat it like Hydro. My concern would be the Cal mag potentially cleat the nutrients . This would definitely create deficiencies and/or lockouts. Curious to hear what order youāre mixing these nutrients when you started adding Calmag.
Most nutes that donāt need PH adjusting either count on tap water that already has good PH buffering capabilities because of the calcium carbonate in it or have a PH additive like Potassium Carbonate or Potassium Silicate already in the mix to bring up the PH since RO water has a low PH to begin with (mine is around 4.5).
So basically that PH adjustment is already in the mix.
Opinions on ratios in nutrient mixes vary even to this day. I just read this article by Dr Daniel Fernandez that I thought was interesting.
The Potassium to Calcium ratio in hydroponics
I like Dr Dan, he is pretty well respected in the hydro community and created one of the coolest tools called Hydrobuddy to help with nutrient mixes and their corresponding PPM values in the final solution. I would research all the other blog posts that he has on the subject. Bruce Bugsbee is another well respected scientist doing work in the field. I believe there are a few folks on the forum that follow his growing style. The rabbit hole is deep and the more you learn the closer youāll get to just making your own solution with raw salts lol. I use Jacks but am pretty close to just making my own since I already own 75% of the salts anyway.
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