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cal/mag in coco

Cannabean

Active member
Cannabean - What I wrote before only applies to coco and only if your calmag source is carbonate based. As far as I know, only General Organics CalMag and GH CaliMagic contain carbonates. Botanicare Calmag+ and techniflora do not contain carbonates. So read your ingredients. Most likely you are not using carbonate based calmag and havent had these issues. Also if you keep your coco constantly moist and feed everyday with plenty of runoff, you are much less likely to run into these types of issues.

i see, i run botanicare calmag+ so that makes sense. thanks
 

Cereals

Member
Just wanted to post an update here... My girls are still doing fantastic since I made the switch to JUST H&G Cocos A+B base nutes and RO water.
 

rme

Member
dont use gh calimagic for coco, its carbonate based. it may not show problems immediately, but eventually it can build up in your root zone. same goes for go calmag.

with ro water, using coco specific nutes, you shouldn't need any extra cal mag. try flushing em with clean water and starting over.

also, too much potassium will lock out magnesium, so avoid any bloom boosters or anything, at least until you cure the deficiencies. other things that can look like mag deficiencies are pesticide burn or not enough light.

i would foliar an epsom salt solution, instead of adding it to the res and throwing off the balance of you base nutes.

measure your run off, you might have salt build up or pH drift. i would run clean water pH'd to 5.4 thru the pots till the runoff is <100 ppm, then immediately feed just your base coco nutes. then foliar a epsom salt solution of about 100-200 ppm. repeat the foliar in 3 days and you should see improved growth.

What is wrong with the carbonate based Ca? I think this has been causing an issue since I started to use this product...
 

RedBeardy5

Active member
cereal, thanks for the update. I started the bubblegummer and they were doing awesome with no cal/mag. Now last Saturday the police came looking for me because of the seeds I ordered. So I moved everything into storage, took me 3 days and nights to pull everything down. Lost a lot of money and my harvest. Now im getting ready to move to do this legally.
 

RonSmooth

Member
Veteran
cereal, thanks for the update. I started the bubblegummer and they were doing awesome with no cal/mag. Now last Saturday the police came looking for me because of the seeds I ordered. So I moved everything into storage, took me 3 days and nights to pull everything down. Lost a lot of money and my harvest. Now im getting ready to move to do this legally.

How do you know they came looking for you because of the seeds you ordered?

Doesn't sound right to me. I have never heard of anyone getting busted for ordering seeds. At least from an overseas seed bank.
 

RedBeardy5

Active member
Well the police showed up at my parents asking for me. My first package was opened and the seeds were taken by customs. 2 weeks later they showed up asking my parents about the package and if they had grow lights in the house. So I tore everything down for 2 days, huge process but not worth getting busted. A under cover cop pulled into my driveway that night and then left. They still have not showed up. I could cry ripping up my hard work and destroying my harvest.
 

Gelado`

Active member
Veteran
They just wanted to scare you, but you were right to take it all down because they were suspicious. People can and do get visits and even raids over seized seeds nowadays, so always use a safe address and change it often!
 

ICbuds

Member
Veteran
I'm thinking Colorado is filling up fast at this point, no? I have several friends who have already moved up to Washington.
 

RedBeardy5

Active member
Yeah I'm moving in the spring. I have 2 houses here that I'm going to rent out or sell. Been planning on it for a year since I found out the buildings I manage are being sold. It would be cool to be in the scene
 

Zen Medz

Member
All this talk of calcium carbonate based cal mag products got me checking labels. I noticed that my GH Micro has calcium carbonate listed as the third ingredient. On a 5 year old bottle of GH Micro calcium carbonate was one of the last ingredients listed? It seems like GH bumped up their cal carbonate to possibly help pH balance their nutrient solution like another companies "pH Perfect" line of nutes.

If GH has a bunch of cal carbonate in their micro and in their calimagic this could lead to serious problems with coco. Wtf?? I e-mailed GH a couple weeks ago and they suggested their Flora Series line of nutes with calimagic for coco but said I should flush weekly with flora kleen. I'm assuming that was due to the possibility of salt build up. Looks like using another brand of cal mag without cal carbonate would be a better idea with good runoff or a weekly flush. I also noticed that almost every coco specific nute line doesn't use any cal carbonate in their bases, Canna, H&G, AN, CNS, etc... Food for thought.
 
All this talk of calcium carbonate based cal mag products got me checking labels. I noticed that my GH Micro has calcium carbonate listed as the third ingredient. On a 5 year old bottle of GH Micro calcium carbonate was one of the last ingredients listed? It seems like GH bumped up their cal carbonate to possibly help pH balance their nutrient solution like another companies "pH Perfect" line of nutes.

If GH has a bunch of cal carbonate in their micro and in their calimagic this could lead to serious problems with coco. Wtf?? I e-mailed GH a couple weeks ago and they suggested their Flora Series line of nutes with calimagic for coco but said I should flush weekly with flora kleen. I'm assuming that was due to the possibility of salt build up. Looks like using another brand of cal mag without cal carbonate would be a better idea with good runoff or a weekly flush. I also noticed that almost every coco specific nute line doesn't use any cal carbonate in their bases, Canna, H&G, AN, CNS, etc... Food for thought.

I hadn't noticed that. I have had nothing but great results from GH, and switched back to them from Canna, which was giving me weird problems.
6/9 GH, with rainwater. No ph-ing it. No EC check. Just a little Epsom salts every other watering.
Thanks for the info. :)
 

Zen Medz

Member
BL, Head's ration no doubt works well in coco, my local hydro shop actually recommended that for a cheap and effective nutrient. I'm just curious when GH bumped up their calcium carbonate in their micro. Kind of scratching my head over why GH is putting so much calcium carbonate in their products. Is it a way to make a cheaper cal mag, instead of using two separate products like calcium nitrate and magnesium nitrate? GH's Flora Nova nutes have zero calcium carbonate for another example. I'm running with GH Flora Series this round and hope everything goes smooth.
 

Gelado`

Active member
Veteran
I use 50/50 100% organic soil/coco and use CaCO3 and MGSO4 (calcium carbonate and magnesium sulfate). So far so good...my water is very soft, so I need additional calcium. Lime works just fine outdoors, so I don't see why it would be an issue indoors?
 
My plants freaked out upon initial transplant into calimagic-charged Coco. They got rust spots and necrosis. I abandoned calimagic and subbed in Epsom salts and instantly things went back to normal.
Could be coincidence, who knows...
I'm getting a little hook-leaf, but no spots...
 

Zen Medz

Member
I'm really on the fence about using coco with 25% perlite mixed in. I've been growing organically in a supersoil that I make myself for the last 7 years and really like the flexibility of it. Coco can perform well but it seems like there are a few more variables with it. My local hydro shop crew all said they grow in peat based mixes or peat coco blends to make things easier/predictable. They've had issues here and there with straight coco. Damn, leaning towards cutting my mix with some peat moss and dolomite lime. I'd rather have a solid grow with fewer nutrient and pH problems than a slightly better yield with more issues. I've got another week to figure it out, the cuttings in keg cups with my coco mix seem to be happy so far.
 

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