What is DKH in an aquarium?

by Jimmy Fox | views: 329

In the aquarium industry, total alkalinity may be referred to as "carbonate hardness" or "KH," which is often measured in degrees (dKH) rather mg/L or ppm. One dKH is equal to 17.9 mg/L or 17.9 ppm.

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Additionally, what should my freshwater tank dkh be?

What is the Ideal KH Level for Aquariums? KH is measured in dKH (degrees of KH) or ppm (parts per million), where 1 dKH equals 17.9 ppm. Typically, freshwater aquariums should be between 4-8 dKH (or 70-140 ppm).

People also wonder, what is the difference between alkalinity and dkh? Alkalinity (meq/L) and dKH are exactly the same things when measured with an aquarium test kit. They are just different units, like inches and centimeters. 1 meq/L = 2.8 dKH = 50 ppm calcium carbonate equivalents.

In addition to that, you may wonder, is ph the same as dkh? ph measures your speed, DKH is the weight of your truck.

Is KH and dKH the same?

KH (carbonate hardness) and DKH (degrees of carbonate hardness) are what we want to test in a marine tank (and are the same thing). It's GH (general hardness that includes ions other than carbonate) that is irrelevant.

23 Related Questions & Answers

Is KH harmful to fish?

A KH of zero is particularly dangerous because it can lead to unsafe drops in pH that makes the tank toxic to both fish and plants. Ideally, you want to maintain at least some level of KH in your tank, no matter what type of species you keep.

How does KH affect fish?

KH doesn't affect fish directly, so there is no need to match fish species to a particular KH. Note: it is not a good idea to use distilled water in your tank. By definition, distilled water has essentially no KH. That means that adding even a little bit of acid will change the pH significantly (stressing fish).

Does dKH affect pH?

An acidic solution has more hydrogen ions, a base/alkaline solution has less hydrogen ions. ALK (KH/dKH) is measuring the buffering capacity, or ability of the solution to maintain its PH when when acid is added..... or how resistant the tank will be to a ph change.

How do I check my aquarium dKH?

Wipe the cuvette of any oils or fingerprints and place back into the meter. Press the button, and the meter will display the alkalinity in either degrees Karbonathärte (dKH) or parts per million (ppm), depending on which Checker you've purchased.

How do I check my dKH?

How do I raise the KH in my aquarium naturally?

Raising KH levels in the tank is easy. In a planted tank this is best done by adding KH2CO3 or K2CO3 (Potassium bi-carbonate/carbonate). The potassium functions as fertilizer for plants as well. Another easy way to raise the KH levels in a tank is by adding pieces of limestone into the filter or tank environment.

What causes KH to drop in aquarium?

KH can drop in this case as the rate at which acids are being produced is accelerated, eating at the water's carbonates/bicarbonates. Adding too many new fish into a freshwater aquarium can have the same effect. Once KH levels are too low for pH stability, the tank will eventually go through a pH crash.

How do I lower the carbonate hardness in my aquarium?

  • Converting KH to CO2 with Acid Buffers.
  • Mixing Distilled Water with Tap Water.
  • Creating Pure Water with RO/DI.
  • Releasing Tannins by Adding in Indian Almond Leaf.
  • Releasing Tannins Using Peat Moss.
  • Why is dKH important?

    Alkalinity is important in saltwater aquariums for a number of reasons. Proper alkalinity (142-215 ppm or 8-12 dKH) is vital for coral calcification and skeletal formation; it prevents pH swings, alkalinity burn, coral bleaching, and tissue loss; and it improves equipment performance.

    What should my fish tank levels be?

    7.0 is considered neutral. Most freshwater aquarium tropical fish do best at a pH of 6.8 to 7.8, although certain fish may require higher or lower levels. The pH of an aquarium tends to drop over time due to the breakdown of organic material, and the best way to prevent this is through regular partial water changes.

    Is GH or KH more important?

    Plants and livestock are generally less sensitive to GH than KH. Plants that require softwater to grow well require low KH values, but not necessarily low GH values. These plants are sensitive to alkalinity, to be accurate, rather than General hardness. GH is important when keeping shrimp and shellfish.

    How can I raise the KH in my aquarium without raising pH?

  • Add potassium bicarbonate.
  • Add crushed coral.
  • Add limestone.
  • Use dechlorinated tap water.
  • Use alkalinity buffers.
  • What is aquarium KH?

    Do plants lower KH?

    JoeRoun said: Beyond certain plants reducing carbonate hardness (KH) when striving to replace CO2, which would generally be minor, biological processes tend to be acidic. Remember that our little aquatic worlds are obviously aqueous. We tend to forget that water itself dissociates and ends up having a Hydrogen to give.

    Is KH and pH the same?

    KH is the buffering capacity or the ability of water to keep the pH stable. Carbonate ions bond with hydrogen ions, the pH. Consequently, when more carbonate ions bond, the pH level increases, while fewer carbonate ions decrease the pH level in the tank.

    How do I increase hardness in my aquarium?

    You can increase your aquarium water hardness by adding crushed coral, using hard tap water, or by using remineralization products such as Seachem Equilibrium. It's best to make these changes before adding fish to avoid fish loss.