churchhaze
Well-Known Member
Because buy cal-mag.
and because 'canna-specific' nutes lack them on purpose.
buy me and buy more, is that not the idea?
a lot are complete enough.But they don't. A lot of plant foods are complete enough for healthy growth and additional calcium and magnesium is unnecessary.
a lot are complete enough.
a lot are not.
i know it's rare to find a three part hydroponic formula that has ENOUGH calcium and magnesium for pot in a hydro application. plenty for certain garden variety plants, but not pot. and i find it funny that the hard water formulated 3 part stuff is HIGHER in cal and mag, but then i suppose they are planning on the ph swing, making cal/mag not as available for uptake.I think it's rare to find a liquid food in a hydro shop that doesn't contain both calcium and magnesium.
i know it's rare to find a three part hydroponic formula that has ENOUGH calcium and magnesium for pot in a hydro application. plenty for certain garden variety plants, but not pot. and i find it funny that the hard water formulated 3 part stuff is HIGHER in cal and mag, but then i suppose they are planning on the ph swing, making cal/mag not as available for uptake.
i don't use single bottle formulas, as i like to increase or decrease to get my proper range. in hydro, at 5.8ph, cal/mag is only slightly low for gh3, and i get by adding 3-5ml per gallon. i currently have four plants under 2kw, and all are happy but one, and that one has a slight magnesium deficiency.
i guess it depends on the nutrient line, particular products used, specific genetic preference, ph, and of course, your base water supply...
that's what i think.
seems that cal/mag deficiency is a problem with LED grows which may be why the problem is more common in these threads.
well i'm a low budget PU MMJ grower. I use MG plant food and MG bloom and never had a cal/mag problem can't imagine a plant food not having enough cal/mag unless the company is trying to sell customers a separate supplement. first started seeing questions about cal/mag from people growing with multi-band LEDs ( Mono's).
mg all purpose (24-8-16) is fine for dirt, and has plenty of cal/mag.Must be the dirt![]()
maybe... i guess i haven't been growing long enough to use the ONE EXACT single bottle nutrient that EVERYONE else uses as to not need calcium or magnesium....I think it's growers understanding things more than lights.
we do what works. maybe british water is harder than other countries? maybe british nutes are better than american, and brits don't rip people off (btw, how much is a liter of gasoline?) with multiple products designed to produce capital...I also think it's genuinely rare to actually need to supplement calmag if it's already being supplied in a base nutrient. The 'because buy calmag' camp can't diagnose sh*t which is why their knee-jerk reaction is to add more calmag. It's actually complete bollocks.
My squash plants this year experienced blossom end rot which is a true calcium deficiency. I hit them twice with a couple mls/gal of calmag early in the season and BOOM I have 40 pounds of squash now with more plant mass than any indoor cannabis plant. Growers would be shocked at how little food these plants actually need to thrive.
And magnesium? The needs are so low that if it's present then it's enough.
But do what works for you.
mg all purpose (24-8-16) is fine for dirt, and has plenty of cal/mag.
it also cannot be used in hydro (for very long). so cool for the cal/mag, bad for anyone growing hydro.
maybe... i guess i haven't been growing long enough to use the ONE EXACT single bottle nutrient that EVERYONE else uses as to not need calcium or magnesium....
we do what works. maybe british water is harder than other countries? maybe british nutes are better than american, and brits don't rip people off (btw, how much is a liter of gasoline?) with multiple products designed to produce capital...
kelp is a vitamin booster some love to use, it's also high in calcium and magnesium, with some nitrogen and potassium as well.
i think you are closed minded. if cal/mag were never needed, it would not be a profitable product. i DO need it with my base nutes and well water, but the guy 30mi from here on city water doesn't... the only difference between our setups is the base water.
it is true that a lot of you don't know how to read a plant, overfeed, fuck up ph, and get a funky burned yellow plant, and people will say cal/mag. a lot of the time, the DO need calmag because they have been overfed, salts have built up in the soil, and altered ph, which is not allowing uptake of calcium or magnesium.
i think that i think better.
i think you are closed minded. if cal/mag were never needed, it would not be a profitable product. i DO need it with my base nutes and well water, but the guy 30mi from here on city water doesn't... the only difference between our setups is the base water.
it is true that a lot of you don't know how to read a plant, overfeed, fuck up ph, and get a funky burned yellow plant, and people will say cal/mag. a lot of the time, the DO need calmag because they have been overfed, salts have built up in the soil, and altered ph, which is not allowing uptake of calcium or magnesium.
i think that i think better.
Calmag is a profitable product because it's made with raw salts and water. The markup you pay is in the hundreds of percents.
I am closed minded? I've sent reservoir samples out for analysis multiple times and I know EXACTLY how much calcium and magnesium my plants use over a week and my plants aren't special (neither are yours). I've even run side-by-sides with additional calcium and magnesium and more (when not needed) didn't do squat. FWIW, I use RO water and would be willing to bet my plants get less water soluble calcium and magnesium than yours yet I have literally never had an issue with either element.
And to your point about overfeeding causing a need for calmag? Since when is more a solution to excess?
Beginners in this hobby love to point to pH and calmag as solutions to everyone's issues when those are rarely ever the issue.
Calmag is a profitable product because it's made with raw salts and water. The markup you pay is in the hundreds of percents.
I am closed minded? I've sent reservoir samples out for analysis multiple times and I know EXACTLY how much calcium and magnesium my plants use over a week and my plants aren't special (neither are yours). I've even run side-by-sides with additional calcium and magnesium and more (when not needed) didn't do squat. FWIW, I use RO water and would be willing to bet my plants get less water soluble calcium and magnesium than yours yet I have literally never had an issue with either element.
And to your point about overfeeding causing a need for calmag? Since when is more a solution to excess?
Beginners in this hobby love to point to pH and calmag as solutions to everyone's issues when those are rarely ever the issue.
we got a fever, and the only prescription... is more cowbell!This thread Needs more cal/mag
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