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All of our aquatic plant foods have minimal impurities, and are suitable for the do-it-yourselfer with experience in handling chemicals. Most are available in 1 lb. quantities.  Please do not ask to be sold or sent fertilizers in smaller quantities.

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Barrs GH Booster

Tom Barr's general water hardness booster contains: 3 parts Potassium Sulfate, 3 parts Calcium Sulfate, 1 part Magnesium Sulfate by weight. 1 lb.

 One Tablespoon or 16 grams will raise the GH of 20 gallons of water by 3 degrees or 1 meg/liter.

$ 8.00


Reviews for Barrs GH Booster             Write A Review   

Flag This Review as Inappropriate or OffensiveSeptember 6, 2014     by     Ole Norgren of Norway, Stavanger     
Hi, I was just wondering, what the ratios of the different chemicals in the mix?

Bought a bunch of stuff from this site. Did a bunch of calculations before hand , and those calcs. was with pure substances. And when I got the products and mixed, it was almost spot on. Great price, quality and service. This site is awesome!

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