I need a good mineral program to substitute cal mag. I am using ro water.

I know that epsom salt will do some good.

What are the levels I should be adding per gallon of 4 stage filtered ro water?

What else should I add. I have 1 big handful of dolomite lime per cubic foot of soil. I am using the little rock dolomite not the flour but I have already added it.

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Dirt Clean.... Shellfish fertilizer is a great source, full of things Mary likes. Google organic fertilizer stores and you will get plenty of results. I bought some last year from Planetnatural.com They had 5 pound bags for around $ 8, plus shipping.
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You can also rinse off and save eggshells. After you have 8 or more, boil them in a small pot of water for 10 minutes. The soluble calcium will end up in the water. After it cools to room temp, add one pint of it for every 10 gallons of reservoir water. If growing in soil, 4 ounces per plant, poured directly into the soil.
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Throw the (boiled) eggshells themselves in a compost pile and reap the benefits later.
Well made / aged compost is black gold....
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If you buy the shellfish fertilizer (pulverized crab shells, etc...) you can boil them like the eggshells - use about the same volume (which amounts to about one handfull) in your water. Leftovers in the compost pile.....
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Hope this helps.....
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thanks. good to know.

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i read on another board that using dolomite lime along with blackstrap molassas should supply the minerals that the RO water lacks. not sure if it's true or not but i sure hope it is since i'm using RO water and relying on those things!

co-sign the eggshells, molasses, and epson salt. you should be just fine

the eggshell idea sounds good. I like. Man my girls are doing good, I gotta post pics.

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I am about to add some eggshell water to my plants.

I use molasses in my feeding

i still wonder how much epsom salt?


also how many times should I ass the egg water and epsom to get it right?

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here is some information I found on the web too. Looks like a nice read.


If you’re in the habit of buying all sorts of liquid fertilizers and other commercial treatments for your garden, you may be happy to learn that at least two commonly discarded kitchen scraps are ideal for many of your garden plants.
You’ve heard of “liming” the garden and lawn, right? Most people buy a bag of lime (calcium carbonate) every few years and sprinkle it throughout the garden. Were you aware that eggshells are 93% calcium carbonate?
Otis the pot-bellied pig lives in the authors’ yard. A pig in the yard is a great source of fertilizer.
In addition to the calcium, the eggshells contain about 1% nitrogen, about a half-percent phosphoric acid, and other trace elements that make them a practical fertilizer. Calcium is an essential plant nutrient which plays a fundamental part in cell manufacture and growth. Most roots must have some calcium at the growing tips. Plant growth removes large quantities of calcium from the soil, and calcium must be replenished, so this is an ideal way to recycle your eggshells.
We save our eggshells in a pan in our oven. The pilot light temperature slowly dries them out. Then we crush them by hand and powder them in the blender. The powdered eggshells are then placed around fruit trees, in potted plants and roses, and broadcast throughout the vegetable garden.
You can also solve your snail problems with the help of recycled eggshells. Instead of powdering the shells, use them at the hand-crushed stage, with plenty of rough, sharp edges. Scatter the crushed shells in circles around those plants that the snails are eating. Since the shells cause discomfort to the snails, they nearly always retreat and do not cross the shell barriers. (Did you know that our California brown snails are actually escaped escargot? One method of “control” is simply to eat them—but that’s

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Somebody041...... The blackstrap molasses does have allot of trace minerals - I've been using it for years and don't plan on stopping.
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The Dolomite lime is a good, slow release source of cal / mag, but since it takes time to break down (unless micronized) - using the boiled eggshell water - offers a more immediate effect. Using both - is not overkill......
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Hope this helps....
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On the issue of using epsom salt for cal / mag. One to three teaspoons per gallon - once monthly. Give each plant one quart of your mixed up solution. Start with the one teaspoon during veg growth, work upwards as you hit flowering...... No more than three applications, total, are needed with most strains... If using RO water, use every 21 days, instead of every 30........
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