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  1. Up Aqua Digital Ph Pen PH-0/14

    Digital Ph Pen PH-0/14A Learn More

  2. TRM-1: Triple In-Line TDS Monitor

    DM-2: Commercial In-Line Dual TDS Monitor

    The DM-2 is a commercial grade monitor measuring TDS feed (input) water vs. product (output) water of a water filtration system at any time. With its shielded cables and diagnostic messaging this robust device is ideal for Reverse Osmosis (RO), Deionized water (DI) filtration systems that work well in applications such as drinking or potable water, Water treatment, Aquariums, Hydroponics and many more.


    • Highly efficient and accurate due to its advanced microprocessor technology
    • Displays TDS levels of the Feed Water and Product Water with in & out electrode probes
    • Auto-Off function conserves battery power (Shuts off automatically after 3 minutes)
    • Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. The DM-2 features digital calibration.
    • Diagnostic error messaging
    • Shielded sensor cables
    • Comes equipped with 1/4 inch Mur-lok® Quick-Connect T-fittings (Also available with 3/8″ or 1/2″ fittings)
    Learn More

  3. Seachem Reef Status: Magnesium, Carbonate & Borate

    Four kits in one! Tests for magnesium through a titration based procedure in increments of 12.5 mg/L. Learn More

  4. Seachem Reef Status: Calcium

    This kit measures all types of calcium, including gluconate calcium. The method is based on specific titration with a unique indicator. Measures in increments of 5 mg/L. Each kit runs 150 tests Learn More

  5. Seachem pH Alert

    pH Alert™ is a unique color device designed to be placed in the aquarium or filter and monitor pH continuously. Learn More

  6. Seachem MultiTest: Reef Special

    This kit combines the Phosphate, Silicate, and Iodine/Iodide kits into one kit. MultiTest™ Reef Special performs over 75 tests and contains a reference sample for validation Learn More

  7. Seachem MultiTest Iodine & Iodide

    This kit measures iodine or iodide to less than 0.005 mg/L. MultiTest™Iodine/Iodide performs over 75 tests and contains a reference sample for validation Learn More

  8. Seachem Ammonia Alert

    Seachem Ammonia Alert™ is an innovative color device for continuously detecting and monitoring toxic free ammonia. Learn More

  9. Scionix Coral Box Digital Refractometer

    Scionix Coral Box Digital Refractometer

    Eliminate the Uncertainty Associated with Mechanical Refractometers Digital Pocket Tester is a portable, rugged, water resistant device that utilizes electric conductivity to determine the specific gravity/salinity of natural and artificial seawater. Within seconds, the salinity and temperature are measured and visually displayed on the easy to read backlit LCD screen. Features High Resolution Salinity Measurement Automatic Temperature Compensation Water Temperature Reading Large Backlit LCD Display.

    • High Resolution Salinity Measurement
    • Automatic Temperature Compensation
    • Water Temperature Reading
    • Large Backlit LCD Display
    Learn More

  10. Salifert Strontium TEST KITS

    Strontium plays an important role by accelerating coral and calcareous algae growth. Learn More

  11. Salifert pH TEST KITS

    The pH value can have a major impact on the growth of corals and calcareous algae and on many biological processes. Learn More

  12. Salifert Organics TEST KITS

    Salifert Organics TEST KITS Learn More

  13. Salifert Nitrite TEST KITS

    Nitrite is a substance that is toxic to fish and invertebrates. Learn More

  14. Salifert Natural Strontium 500ml

    Salifert Natural Strontium 500ml Strontium is probably important for accelerating coral and calcareous algae growth. NSW (Natural Sea Water) contains approx. 7 - 9 mg/L strontium. This strontium is associated (”chelated”) with sulfate. Since the growth of corals and calcareous algae goes hand in hand with strontium and calcium depletion, depletion of calcium (which is very easily measurable) usually means depletion of strontium as well. About Natural Strontium Strontium supplements should be designed in such a way that a too low or a too high strontium concentration is avoided. With this supplement we have reached this aim with an easy-to-use formulation. Learn More

  15. Salifert Natural Iodine 500ml

    Salifert Natural Iodine 500ml About Natural Iodine Salifert's Natural Iodine supplement contains a large portion iodate and also some iodide in similar proportions as NSW. All ingredients are of a pharmaceutical quality or even better. This ensures that no unwanted elements are added to your valuable aquarium. Learn More

  16. Salifert Magnesium Liquid 500ml

    Salifert Magnesium liquid 500ml Magnesium is an essential trace element which also helps stabilize alkalinity. Learn More

  17. Salifert KH + pH Buffer 1000ml

    About KH + pH Buffer

    It is a highly concentrated, fast dissolving powder which increases alkalinity
    (carbonate hardness) and stabilizes the pH at the correct value. In these ways it contributes significantly to the health of all aquarium inhabitants including corals, coralline algae and fish. Within 24 hours it will acquire the pH corresponding to other aquarium parameters. Should the pH remain low within 24 hours of corrective measures then an insufficient gaseous exchange (inefficient aeration) is quite often the cause.

    Learn More

  18. Salifert Iodine TEST KITS

    Iodine is present in NSW (Natural seawater) in a very low concentration (0.06 mg/L or 0.06 ppm). Learn More

  19. Salifert Coral Calcium 500ml

    Salifert Calcium liquid 500ml Calcium is a major constituent of calcareous algae, skeletal material of hard corals and the skeletal needles of soft/leather corals. Calcium also fulfills many biological functions. These processes result in depletion of calcium. Quite often a too low calcium concentration retards growth of corals and calcareous algae. NSW (Natural Sea Water) contains 400 - 450 mg/L calcium. This is also the value we should strive for. Learn More

  20. Salifert Borium TEST KITS

    Salifert Borium TEST KITS

    Using The Test

    The test kit itself is about in the middle of the pack in terms of complexity. It is not as easy as many kits, but not as complicated as certain kits. There are reagents present for at least 10 measurements, and in most cases where boron is not excessively high, many more. The process is roughly as follows (detailed directions are available from Salifert at their [web site][23]):

    1. Use a syringe to draw up some tank water.
    2. Add 2 liquid reagents and mix. The solution is green
    3. Split the batch in half with a syringe.
    4. Add a solid to one half (which changes the color to yellow).
    5. Add one of the liquid reagents dropwise until the colors match (a green).

    Each drop of titrant amounts to 0.5 ppm boron. I could easily match the color to within 2 drops, so the uncertainly of the titration itself is about +/- 0.5 ppm or so. The color continues to change on overshooting the titrant, so it is clear (at least to me) when enough was enough.

    Be sure to carefully follow the directions about which reagent to titrate with. While the directions are perfectly clear, I actually titrated with the wrong one on two different occasions, resulting in the color never changing.

    One other comment. The first kit that I obtained was identical to the ones that I tested, except that it had apparently been sitting around a store for a long time (years perhaps). One of the reagents (B3) can go bad by reacting with atmospheric carbon dioxide, and it had done so in my kit. Habib Sekha has indicated that when that happens, the reading for boron can rise. In my case, it rose so much that I never found a color endpoint, indicating very, very high boron.

    Learn More

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