Product Price Test Parameters (count) Accuracy (ppm (parts per million)) Test Range (ppm) Response Time (minutes) Ease of Use (scale (1-5)) Included Tests (count)
API Nitrate Test Kit for Freshwater and Saltwater Aquarium 90 Count
US
£10.32 Total nitrate NO3 Accurate colorimetric testing with computer-calibrated color cards 0 to 160 ppm 5 minutes Easy liquid test with dropper bottles, glass test tube, color cards and instructions 90 nitrate tests

This liquid test kit measures total nitrate in freshwater and saltwater aquariums across a 0 to 160 ppm range. It includes two reagent bottles, two color cards, a capped glass test tube and instructions, making it suitable for routine aquarium monitoring.

★ Ideal for

It suits long-term aquarium use because it provides 90 tests, supports weekly monitoring, and includes durable glassware and calibrated color cards for repeated nitrate testing.

Salifert NO3 Nitrate Profi-Test for Aquarium 60 Tests
US
£12.55 Nitrate Low-range comparison increases accuracy; amine interference is reduced 0.2-100 mg/L as nitrate 3 minutes Easy-to-read color change titration with simple instructions 60

This kit measures nitrate in aquarium water using a color-change titration method and includes enough reagent for 60 tests. Its dual low-range and medium-range readings suit aquarium keepers who need routine nitrate monitoring, including reef and marine aquarium users.

★ Ideal for

It suits long-term use because it provides 60 tests, offers a low range of 0.2-10 mg/L for more precise monitoring, and reduces amine interference that can distort readings.

Red Sea Calcium Test Kit Reagent Refill 75 Tests for Aquarium
US
£19.47 Calcium ±2.5 ppm Easy-to-use titration test 75 calcium tests

This reagent refill measures calcium in saltwater reef aquariums using a high-precision titration method. It is suited to reef aquarists who already own the Red Sea Calcium Pro Test Kit and need reagents for long-term calcium monitoring.

★ Ideal for

It suits long-term aquarium use because it provides 75 calcium tests, ±2.5 ppm accuracy, durable testing materials, and affordable reagent refills.