Great Aquariums Start Here
1-800-566-3474
Live Chat Support
    Free Shipping On $75+
  • FREE Shipping On $75+
  • 14-Day Low Price Guarantee
  • 14-Day Low Price Guarantee
  • Same Day Shipping
  • Same Day Shipping
FREE Shipping on
Orders Over $75
Standard ground shipping (1-7 business days) starts at a low $4.99 and most orders over $75 ship FREE. Learn More
 
If you find a product we sell for a lower price at another online store, we will match their price—today and up to 14 days after you've purchased the item! Learn More
 
Same Day Shipping
We promise to ship your order as fast as humanly possible. In fact, 99% of orders placed before 6 pm EST ship the same day! Learn More
 

Dkh Test Kit

1 - 18 of 18
Show: per page
GridList
Sort by:
Elos Aqua Test Kit - Carbonate Hardness

Elos Aqua Test Kit - Carbonate Hardness

…each batch is validated using NIST (National Institute of Standard and Technology) samples. High number of test per kit: up to 60 test (with a standard level of 10 dKH) "Safe reagents": reagents and testing procedures are based on Low Risk Reagents. None of our test kits are based on Toxic Reagents.

$17.99
Aquarium Pharmaceuticals® API Saltwater Calcium Test Kit

Aquarium Pharmaceuticals® API Saltwater Calcium Test Kit

…levels drop the pH becomes unstable. The carbonate hardness level (KH) should be 7-10 dKH [125 ? 179 mg/L (ppm)] to encourage growth in a reef aquarium and maintain pH. Use the Aquarium Pharmaceuticals KH Test Kit to measure the carbonate hardness. Add Proper pH 8.2 to increase carbonate hardness…

$8.99
Red Sea Alkalinity Pro Test Kit - Reagent Refill Kit

Red Sea Alkalinity Pro Test Kit - Reagent Refill Kit

…KH/Alkalinity Pro Test Kit is an advanced titration test, measuring the level of buffers in your reef aquarium to an exceptionally high accuracy of 0.05 meq/l (0.14 dKH). Reagent Refill Kit Only - Includes reagents only to perform 75 aquarium water tests with the Red Sea Alkalinity Pro Test Kit.

$16.99
Aquarium Pharmaceuticals® API Freshwater GH & KH Test Kit

Aquarium Pharmaceuticals® API Freshwater GH & KH Test Kit

…Aquarium Pharmaceuticals KH (Carbonate Hardness) Test measures KH in German degrees (°dKH). To convert °dKH to parts per million (ppm), multiply °dKH x 17.9.Directions for Testing Carbonate Hardness (KH): Read thoroughly before testing. Do not allow Test Solutions to get into aquarium. To remove…

$7.99
Red Sea Alkalinity Pro Test Kit - 75 Tests

Red Sea Alkalinity Pro Test Kit - 75 Tests

Red Sea?s KH/Alkalinity Pro Test Kit is an advanced titration test, measuring the level of buffers in your reef aquarium to an exceptionally high accuracy of 0.05 meq/l (0.14 dKH). Red Sea?s Alkalinity Pro test kit enables the accurate dosing of Red Sea?s Reef Foundation B supplement (buffer) which…

$36.99$34.99
Aquarium Pharmaceuticals® API Freshwater Master Test Kit

Aquarium Pharmaceuticals® API Freshwater Master Test Kit

…complete test kit for testing tap and aquarium water. Tests six different potentially dangerous water conditions. Includes Freshwater pH, High Range pH, Ammonia, Nitrite, and Nitrate. Kit features computer-analyzed laminated color cards, instruction booklet, 4 test tubes, a holding tray and test

$25.99
Tropic Marin KH Saltwater Test Kit

Tropic Marin KH Saltwater Test Kit

…capacity of the aquarium water and therefore determines the stability of the pH-value in the water. With these tests the carbonate hardness and alkalinity can be measured with precision in °dKH. The test liquids show a pronounced and obvious color change and are sufficient for approx. 100 tests.

$11.49
Kent Marine Nano Reef Parts A & B - 8oz each

Kent Marine Nano Reef Parts A & B - 8oz each

…add Part B. Do not mix with other supplements outside of aquarium. Use NanoReef Part B to maintain alkalinity within a range of 7-10 dKH. Use of accurate test kits with these products is highly recommended and will ensure that the concentrations in the aquarium are within the desired ranges.NanoReef…

$11.99
Ecosystem Aquarium (Balling Method) Calcium Refill Pack (A, B, C)

Ecosystem Aquarium (Balling Method) Calcium Refill Pack (A, B, C)

…the ECO (Balling Method) CALCIUM 3-Part Supplement, measure all vital parameters in the reef aquarium with commercial test kits, including those for carbonate alkalinity (dKH), calcium (Ca) and magnesium (Mg). Make the following adjustments (in the exact order) if:?the Mg level is below 1300 ppm,…

$24.99
Red Sea KH Coralline Gro Supplement - 500ml

Red Sea KH Coralline Gro Supplement - 500ml

…basis in fish-only or soft corals systems. KH Coralline Gro should be dosed according to a measured drop in alkalinity with Red Sea?sReef Foundation KH/Alkalinity Pro Test Kit. Concentration: Liquid supplement: 1ml will raise the Alkalinity level of 100 liters (25 gal) by 0.1 dKH (0.03 meq/l).

$11.99
Kent Marine Liquid Calcium

Kent Marine Liquid Calcium

…50 gallons (190 l) of tank capacity each day, based on animal load. Since animals use calcium, and gallons do not, regular testing of calcium level by a good calcium test kit (HachTM brand is recommended) is advised. Adjust amount of addition of the product to achieve a calcium level of about 400…

From $7.99
Kent Marine Turbo Calcium

Kent Marine Turbo Calcium

…loaded reef tank or 1/4 teaspoon of granules on a heavily loaded one. Since animals use calcium, and gallons do not, regular testing of calcium level by a good calcium test kit (HachTM is recommended) is absolutely necessary with use of TURBO CALCIUM. Adjust amount of addition of the product to…

From $13.99
Korallin Calcium Reactor without Pump (media not included)

Korallin Calcium Reactor without Pump (media not included)

…CO2 to escape into your system like ALL other brands on the market. A pH Monitor is a nice equipment to have for fast pH measuring. Though pH Test Kit and pH Pen-monitor can still be used for this purpose.The internal recirculation flow rate of the C-1502 is around 80 g/h. Since that this is a…

From $346.49
Brightwell Aquatics Reef Code B - Balanced Calcium & Alkalinity System - Part B (Alk.)

Brightwell Aquatics Reef Code B - Balanced Calcium & Alkalinity System - Part B (Alk.)

…an accurate test kit before supplementing. Shake this product well before each use. Each ml of Brightwell Aquatics Reef Code B will increase the alkalinity in 1 US-gallon (3.785 L) of water by approximately 2.22 dKH (0.79 meq/L). If the initial alkalinity in the aquarium is below 7 dKH (2.5 meq/L),…

From $7.88
Brightwell Aquatics Ph+ Liquid pH Increaser Marine

Brightwell Aquatics Ph+ Liquid pH Increaser Marine

…at all times. Before adjusting pH, ensure that the alkalinity in the aquarium is within a range of 7 - 12 dKH (2.5 - 4.3 meq/L). Determine the pH in the aquarium using an accurate test kit or recently-calibrated pH meter before using Brightwell Aquatics pH+. If the alkalinity is below the desired…

From $5.25
Korallin C3002 Calcium Reactor with Eheim Pump

Korallin C3002 Calcium Reactor with Eheim Pump

…CO2 to escape into your system like ALL other brands on the market. A pH Monitor is a nice equipment to have for fast pH measuring. Though pH Test Kit and pH Pen-monitor can still be used for this purpose. The internal recirculation flow rate of the C-1502 is around 80 g/h. Since that this is…

From $502.49
Brightwell Aquatics Strontion Liquid Strontium

Brightwell Aquatics Strontion Liquid Strontium

…in this fashion, 250 ml treats up to 1,000 US-gallons (3,750 L).Advanced: Determine the strontium concentration in the aquarium using an accurate test kit before supplementing. Shake this product well before using. Each ml of Brightwell Aquatics Strontion will increase the concentration of strontium…

From $6.83
Kent Marine Tech I

Kent Marine Tech I

…available iodide over many weeks. Test kits will not read the timed release iodide, and may not register the free iodine. Do not exceed the recommended dosage without testing, and do not exceed seawater level of either iodine or iodide if measuring with a kit. Carefully observe animals while using.…

From $11.99
WIN 3x CONTROLLABLE PUMPS! Sign up for our best deals, video tutorials + a chance to win $415 worth of Aqua Medic gear!