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Marc Lao, 55g, April 2006
Water Conditioners

Buy a multiple of five of any dry plant nutrient, receive a sixth one free!


Our Inventory

Welcome to Our Planted Aquarium Fertilizer Inventory AquariumFertilizer.com carries water soluble agricultural grade nutrients and water conditioners. We carry the nutrients required by all plants: Macro Micro Nutrient Mix, similar to PMDD; Micro Nutrients in dry and time release Substrate Root Zone Tablets; calcium compounds for water conditioning including Barr’s GH Booster; and 3 chelated iron compounds. We also carry Graduated Dispenser bottles for ease of mixing and dosing that can be purchased in combination with fertilizers at a discount. When you buy 5 of any single nutrient you will automatically receive a sixth of that item free of charge. Shipping is by USPS flat rate priority mail. Up to 6 lbs can be shipped by flat rate envelope and up to 20 lbs goes in a medium flat rate box. Information about shipping costs and delivery time is available in our FAQ page. Information about international shipping is also available in the FAQ page. There is a strict limit of 4 lbs that can be shipped internationally in a flat rate envelope.

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 nutrients in smaller or custom measured quantities.


Sort By:       5 Items Shown
Barrs GH Booster

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.


More Information      $ 8.00    Order:

Calcium Chloride

Calcium Chloride

Calcium Chloride
1 lb. CaCl2
Calcium is important for cell wall strength and thickness of stems. Chloride is used for photosynthesis.


More Information      $ 7.50    Order:

Calcium Nitrate

Calcium Nitrate

Calcium Nitrate
1 lb. CaNO3
Provides calcium and nitrates in a water soluble form. Potassium nitrate alternative for international customers. 19.0% - 15.5%


More Information      $ 4.00    Order:

Calcium Sulfate

Calcium Sulfate

Calcium Sulfate
1 lb CaSO4
AKA Gypsum supplies calcium to plants without increasing alkalinity.


More Information      $ 4.00    Order:

Dolomite (Calcium Carbonate with Magnesium)

Dolomite (Calcium Carbonate with Magnesium)

Dolomitic Calcium carbonate 1 lb
A magnesium source that lowers  acidity / increases alkalinity. 


More Information      $ 4.00    Order:

5 Items Shown




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