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Nutrafin A7830 Carbonate and General Hardness Test Kit for Aquarium


List Price: CDN$ 21.99
Price: CDN$ 15.71 & FREE Shipping on orders over CDN$ 25. Details
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Only 4 left in stock (more on the way).
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  • Nutrafin's carbonate and general hardness test kit measures carbonate hardness (kh) and general hardness (gh) in fresh and saltwater aquariums
  • Low carbonate hardness will result in poor plant growth
  • Testing for general hardness (gh)should be done to determine if the levels of calcium and magnesium are optimal for specific species of fish
  • The kit includes one 15-milliliter bottle of kh reagent, one 10-milliliter bottle of gh reagent, one glass test tube with cap, one pipette, one lab base, one instruction booklet
  • Measures 2-inch length by 5-1/2-inch width by 5-inch height


Product Details

  • Product Dimensions: 5.1 x 14 x 12.7 cm ; 91 g
  • Shipping Weight: 299 g
  • Item model number: A7830
  • ASIN: B00027ZVH8
  • Date first available at Amazon.ca: May 28 2003
  • Amazon Bestsellers Rank: #1,626 in Pet Supplies (See Top 100 in Pet Supplies)
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Product Description

Amazon.ca Product Description

Nutrafin's carbonate and general hardness test kit measures carbonate hardness (kh) and general hardness (gh) in fresh and saltwater aquariums. Carbonate hardness (kh) must be tested on a regular basis because it fluctuates over time and can negatively impact the ph balance of aquarium water. Low carbonate hardness will result in poor plant growth. Testing for general hardness (gh) should be done to determine if levels of calcium (ca) and magnesium (mg) are optimal for specific species of fish. The kit includes one 15-milliliter bottle of kh reagent, one 10-milliliter bottle of gh reagent, one glass test tube with cap, one pipette, one lab base, one instruction booklet. Measures 2-inch length by 5-1/2-inch width by 5-inch height.

Product Description

Carbonate & total hardness test kit Fw/Sw Hagen carbonate hardness (KH) levels need to be tested on a regular basis because they fluctuate over time and can negatively impact the pH balance of the aquarium water. Low carbonate hardness will result in poor plant growth. Testing for general hardness should done to determine if the levels of calcium (ca) and magnesium (mg) are optimal for specific species of fish. Kit includes: glass test tube with cap, lab base, pipette, instruction booklet, and bottle of carbonate hardness reagent and one bottle of general hardness reagent.

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Most Helpful Customer Reviews on Amazon.com (beta)

Amazon.com: 3 reviews
1 of 1 people found the following review helpful
The only GH test that works March 23 2013
By Steph Moore - Published on Amazon.com
Verified Purchase
In setting up a new freshwater planted aquarium, I needed to know and track my water quality parameters closely to make sure everything is establishing correctly. I had a very old GH test from Aquarium Pharmaceuticals that no longer worked so I needed to replace it. I initially bought the Elos GH test kit thinking it would be a "win-win" -- new test kit that uses non-toxic reagents. But it didn't work. Frustrated, I asked other people in an online aquarium forum which GH test kit they used. They recommended the Nutrafin kit. And guess what? THIS KIT WORKS. Bonus: It's easy to distinguish the color change that this kit uses; that isn't the case with many GH test kits (I'm looking at you, AP!). Definitely worth the money spent, because I now have a handle on how often I need to change my tank's water, and how much of my GH additive to use each time. Save yourself time and money: if you need a GH test kit, get this one.
Compact essential hardness test kit Feb. 1 2014
By DrSparx - Published on Amazon.com
Verified Purchase
Two tests can be performed on your water with this kit. Nice explanation of the results and how this will affect fish in an aquarium tank. Basic titration test.
Easy KH/GH test Feb. 5 2013
By Tiffanie Layman - Published on Amazon.com
Verified Purchase
I got this recently to test my KH/GH for my shrimp tanks. It was easy to use and understand. Would buy this again in the future.

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