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Water Testing

Aquarium Supplies

Water Test Kits

Using test kits to detect problematic water conditions is key to the sustainability of a healthy aquarium. For a fish-only tank, you should measure and monitor pH, alkalinity, ammonia, nitrite, and nitrate levels. In addition to these, you should also monitor the calcium, magnesium and strontium levels in a reef aquarium.

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  1. Hagen Living Sea Floating Hydrometer with Thermometer, C & F, small, 8 inch

    Hagen Living Sea Floating Hydrometer with Thermometer, C & F

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    Are you worried that the salinity level in your saltwater aquarium is not kept at a constant level? A fluctuating salinity level is bad news to the organisms living in your tank. Water evaporation which occurs in your aquarium eve...
    FROM ONLY
    $7.99
  2. Hagen Living Sea Floating Hydrometer with Thermometer, C & F, large, 12 inch

    Hagen Living Sea Floating Hydrometer with Thermometer, C & F, large, 12 inch

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    Hagen Living Sea Hydrometer with Thermometer—Large Accurate Easy to read Thermometer—C & F
    ON SALE
    $11.99
  3. Hagen Living Sea Floating Hydrometer with Thermometer, C & F, small, 8 inch

    Hagen Living Sea Floating Hydrometer with Thermometer, C & F, small, 8 inch

    Are you worried that the salinity level in your saltwater aquarium is not kept at a constant level? A fluctuating salinity level is bad news to the organisms living in your tank. Water evaporation which occurs in your aquarium eve...
    ON SALE
    $7.99

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