Marine Mini Test Kits Design specifically for use in marine aquariums, where accuracy is paramount. This range is easy to use, well packaged and includes comprehensive advice on water quality. Ammonia 45 tests. Tests included conversion scale to calculate the level of toxic NH3 ammonia Nitrite - SEA030 80 tests. Detect 0.05 to 10ppm of nitrite (NO2 ion) in both marine and freshwater aquariums. Nitrate - SEA026 60 tests. Detect 2.5 to 100ppm of nitrate (NO3 ion) in both marine and freshwater aquariums. Phosphate 60 tests approx. Detect 0.1 to 3.0ppm of phosphate in both marine and freshwater aquariums. Silica 60 tests approx Detects the level of silica in saltwater pH & Alkalinity 100pH / 60 Alk Tests. pH test for marine freshwater aquaria measure pH values from 7.4 – 8.6. Alkalinity test measures buffering capacity in marine aquariums. Including a sample of Reef Supplement Buff. Copper 55 tests or 2 complete (10 day) treatments for a 10 gallon (40 litre) aquarium. Measures the level of noncheleted copper as used in copper treatment for marine fish parasites.