Fritz Liquid Test Kits – gH

Fritz Liquid Test Kits – GH

Easy to Read Instructions

Essential for a Healthy Tank

Accurate in Freshwater

Exp Date # DEC-2026

Description

Description

Fritz Liquid Test Kits – GH

General hardness (GH) is commonly overlooked in many aquariums, but this parameter plays a very important role in your aquariums overall health. GH is the total mineral content of calcium and magnesium in the water. These are important for various biological functions in fish, invertebrates, and even plants. Deficiencies of calcium and magnesium can cause poor growth and faded colors in fish, molting difficulties in shrimp, improper leaf development on plants, or thin, brittle snail shells. 

Freshwater systems will typically have a GH of 4-8 dGH (70-140 ppm). Soft water species like Discus prefer very soft water below 4 dGH (<70 ppm), while some African Cichlid Species prefer a GH above 8 dGH (>140 ppm).

Directions & Dosage

To remove childproof safety cap, push down while turning.

  1. Fill a clean test tube with 5 ml of water to be tested (to the line on the tube).
  2. Holding GH Reagent Solution dropper bottle upside down in a completely vertical position add one drop at a time. Ensure you count the drops as they are added.
  3. Cap the test tube and gently shake several times to mix solution after each drop or two.
  4. The test is complete when the water in the tesst tube, after having been gently shaken, turns from ornage to green. If you have difficulty discerning the color after the first drop of test solution is added, remove the cap from the test tube and while holding it over a white background, look down through the tube. The GH value is determined by the number of drops of reagent that must be added to turn the water in the test tube green. See conversion chart to determine GH.

Corrective actions:

To raise GH, use Fritz RO Recharge or Rift Lake Cichlid Salt as needed to adjust the GH to your preferred level.

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Fritz Aquatics products are used by zoos, public aquarium exhibits, aquaculture professionals and home aquarium hobbyists. Our aquarium products have been trusted by hobbyists and professionals for over 30 years.

We are one of the leading water quality product manufacturers in America. As proven in an independent university study, Fritz aquarium maintenance products are superior to any others on the marketplace and are used in major marine establishments across the nation.

Our History Fritz Aquatics is a specialty brand of aquarium products manufactured by Fritz Industries, which was founded in 1956 by C. Fredrick “Fritz” Weisend. In the early years, Fritz Industries emerged as a research leader in the development of products based on applied chemistry and unique manufacturing processes, leading to the establishment of the pet products division.

The Fritz Pet Products Division began in the early 1970s with the manufacturing of all-glass aquariums and processing aquarium gravel. Today, the specialty division manufactures hundreds of pet products with an emphasis on the aquatics market, developing innovative products such as FritzZyme 7 & 9, TurboStart and FritzGuard. The Fritz Aquatics line is marketed to major distributors and pet retailers throughout the U.S. and internationally.

Fritz Aquatics also manufactures products for large aquatic facilities, zoos and the largest public aquariums in the world. In 2014, Fritz Aquatics secured an exclusive royalty agreement with Sergeant’s Pet Care Products, Inc. for their Mardel and Aquarium Product lines.

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