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Can I use molasses as a substitute for CalMag

cheese111

New Member
Hi guys just wondering if anyone has any experience in using treacle/molasses as an organic substitute for products such as cal/mag. I am using led lights and my growing medium is peat moss with a good measure of perlite and tomato feed for nutes, I am on a very low budget and I'm trying to use household items as there are no grow shops I can use too easily! Any help with this would be greatly appreciated.
 

oldhippie64

New Member
I woud think crushd egg shells and epson salt woud be a good repacement for Calmag. You'd want to soak the eggshells over night and check the PPM to make sure you're not adding too much calcium
 

maxinmaine

Member
I agree with oldhippie64! Had a buddy that did that egg shell trick, took the rust colored spots right away!! Don't forget the epsom.
 

theengineer

New Member
I woud think crushd egg shells and epson salt woud be a good repacement for Calmag. You'd want to soak the eggshells over night and check the PPM to make sure you're not adding too much calcium

it takes a couple of years before eggshells decompose into a form that can be absorbed by plants, they are not a source of calcium for growing herb :peace:
 

Auggie

Well-Known Member
What's wrong with CalMag anyway. That's good stuff - and it isn't expensive. It is exactly what they need, in an easy to measure and consistent strength.
Why make it hard?

~Auggie~
 

Toast33

Member
if mixed with a heavily microbial tea, the non organic cal/mag may not affect the soils health too drastically. Most likely if the soil is super and super healthy, you should be fine :)
 

theengineer

New Member
well, if you're happy to introduce an element of risk that you feel out weighs every other effort that you take to the nth degree along the growing path to ensure a healthy plant, then go for it :peace:
 

kalikushkid

New Member
Def looks like a cal mag deficiency. Also, your plants might be too close. I just purchased a 600w LED which i switched from CFL's and and even at 30" away my plants are still horribly bleached. They look the same color as this picture but no rust spots and i know its light bleaching cuz my shorter plants are fine.
 
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