Salifert Test Kits

Salifert KH / Alkalinity Test Kit
Salifert KH / Alkalinity Test Kit
  • Model: C-TK-SL015
  • Shipping Weight: 0.3lbs
  • Manufactured by: Salifert


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Details: Alkalinity testing and addition
Calcium alone cannot form the skeletal material of corals and allow
calcareous algae to grow. Some other substances are needed as
well. A few other constituents are carbonate and bicarbonate.
These two substances also have a major impact on the
stabilization of the pH in the proper range of 8.1 – 8.4. Such
stabilization is also called buffering. The total carbonate and
bicarbonate concentration is also called carbonate alkalinity or
carbonate hardness. The only difference between alkalinity
and carbonate hardness is a conversion factor.
NSW has an alkalinity of approx. 2.7 meq/L or approx. 7.5 dKH
when expressed as carbonate hardness. For a stable system the
alkalinity or carbonate hardness should have a value similar
to NSW or slightly higher and should preferably not
fluctuate by more than 5%. This means a maximum fluctuation
of 0.14 meq/L or 0.4 dKH. Therefore an alkalinity test
kit should be capable in measuring in steps smaller
than 0.14 meq/L.

Since the major buffer components used for coral and calcareous
algae growth are bicarbonate and carbonate, they should be
added to correct any decrease in alkalinity or carbonate hardness.
A proper formulated buffer should function in such a way
that the corrective measures results in a long lasting effect
and should not upset the pH of the system. The alkalinity or
carbonate hardness should be kept as stable as possible requiring
highly sensitive and accurate means for testing.

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This product was added to our catalog on Thursday 08 July, 2010.