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| Making your own gear - DIY How to make useful and needed items for your grow room. |
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#1
July 25th, 2010, 11:07 AM
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DIY Cal-Mag
Cal-mag is a cheap concoction of calcium nitrate, magnesium sulfate and chelated iron sold at an exorbitant price, about 18$ per pint, for use in hydroponics.
CalMag is very handy during flowering where plants use a lot of magnesium and increased calcium. I use it during final flush to stave off magnesium deficiencies. This recipe costs about 1$ per gallon, and the ingredients can be gotten cheaply online This recipe is from a friend of mine online, 'fatman', who does fertilizer analysis fatmans Cal-Mag ppm Nitrogen 200 Magnesium 120 Calcium 259 Sulfur 160 Iron 10.00 Grams (ounces) Calcium Nitrate 488.9 (17.25) Magnesium Sulfate 464.0 (16.37) Iron Chelate 38.57 (1.36) Volume of Stock Solutions 1 gallon Dilution Rate 100 to 1 Magnesium sulfate online cheap! (Epsom salt) http://www.cropking.com/HydroponicSu...d3725619fdc9e7 Calcium nitrate online cheap! http://www.cropking.com/HydroponicSu...d3725619fdc9e7 Chelated iron! http://www.cropking.com/HydroponicSu...d3725619fdc9e7 Or you can get smaller amounts on ebay! Calcium nitrate 5lb ebay! http://cgi.ebay.com/Calcium-Nitrate-...item27b2e715fe Magnesium sulfate on ebay 2 lb http://cgi.ebay.com/2-LBS-EPSOM-SALT...item2eac65901d Chelated iron on ebay http://cgi.ebay.com/Chelated-IRON-13...item27b39cdb86 Make a lifetime supply for the price of a quart of the retail stuff!! Just sayin'... Last edited by epic; July 29th, 2010 at 09:12 AM. 
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| The Following 2 Users Say Thank You to epic For This Useful Post: | ||
phate (July 28th, 2010), Tastethepain (August 3rd, 2010) | ||
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