Test Kits

Hanna Colorimeter  Hydrometers  Milwaukee Colorimeter  Red Sea Test Kits  Refractometers  Salifert Test Kits  TDS Meters  Thermometers  Tropic Marin Test Kits Sort by:     SKU      Product     Price     Default     Learn More! Click Here! Deep Six Hydrometer Our price: $7.99 Quantity   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  Buy Now  Learn More! Click Here! Red Sea Hydrometer The most basic water quality parameter in a saltwater aquarium is the Salinity. The unique, patented design of Red Sea’s hydrometer enables the hydrometer to be installed permanently inside the aquarium or sump giving a continuous “real-time” reading of S.G. in addition to being used as a regular... Our price: $12.90  Buy Now  Learn More! Click Here! Salifert Alkalinity/KH Test This test allows you to measure kH in steps of 0.3 dKh (NSW 7-8) or alkalinity in steps of 0.1 meq/L (NSW 2.5-2.9). The color change is very clear despite the very small steps. This titration test is good for 40 tests. Our price: $19.50 Quantity   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  Buy Now  Learn More! Click Here! Salifert Ammonia Test Ammonia is measured from 0.1ppm. Colorimetric test god for 50 tests Our price: $19.10 Quantity   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  Buy Now  Learn More! Click Here! Salifert Calcium Test Measures with a true accuracy and precision of 10ppm. Titration test kit good for 50-100 tests Our price: $23.90 Quantity   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  Buy Now  Learn More! Click Here! Salifert Copper Test Deadly in a reef tank, copper in even the most trace amount can reek havoc on reef specimens. Use for testing copper levels when using copper based medications. 50-100 tests Our price: $19.70 Quantity   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  Buy Now  Learn More! Click Here! Salifert Dissolved Oxygen Test Oxygen is highly important and concentrations below approximately 6 ppm have a strong and negative impact on bacteria productivity. Measures in the 2 - 14ppm oxygen range. Colorimetric test good for 50 tests. Our price: $20.20 Quantity   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  Buy Now  Learn More! Click Here! Salifert Iodine Test Detects iodide as well as a separate test for iodate and molecular iodine. Scale 0.01 - 0.1 ppm (NSW 0.06 ppm). Test is free of interference and independent of redox value. Color remains stable for days. Contains, unlike some other iodine tests, no carcinogenic substances. In fact, none of these... Our price: $39.00 Quantity   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  Buy Now  Learn More! Click Here! Salifert Nitrate Test This test offers two ranges. Low Range: 0.2 - 10 ppm as nitrate. Medium range: 2-100ppm as nitrate. Colorimetric test good for 60 tests Our price: $25.00 Quantity   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  Buy Now  Learn More! Click Here! Salifert Nitrite Test Measures 0.1 - 4 ppm nitrtite. Colorimetric test good for 60 tests. Our price: $19.00 Quantity   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  Buy Now  Learn More! Click Here! Salifert pH Test The pH value can have a major impact on the growth of corals and calcareous algae and on many biological processes. The pH should not be allowed to fluctuate more than approx. 0.3 units during 24 hours and should preferably be kept between 8.0 and 8.2. Colorimetrci test good fo 50 tests. Meas... Our price: $16.00 Quantity   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  Buy Now  Learn More! Click Here! Salifert Phosphate Kit Rapid color development in a just a few seconds. Two ranges within the same kit. Ultra-low 0.015 - 1.5 and medium/high range 0.03 - 3 ppm as phosphate Our price: $26.20 Quantity   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  Buy Now  Learn More! Click Here! Salifert Potassium Reef Test Kit Salifert Salifert Potassium Reef Test Kit Our price: $23.90 Quantity   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  Buy Now  Learn More! Click Here! Salifert Silicate Test Measures soluble silicate in two ranges, 0.03 - 3 and 0.3 - 30 ppm as silicate. 60 tests Our price: $21.90 Quantity   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  Buy Now  Learn More! Click Here! Salifert Strontium Kit This extremely accurate titration kit gives strontium readings 4ppm increments. 25 tests Our price: $40.20 Quantity   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  Buy Now  Learn More! Click Here! Tropic Marin Calcium Test Kit Tropic Marin Calcium-Test For the determination of the calcium concentration in saltwater.Calcium is one of the most important components of saltwater and largely determines the growth rate of organisms, which form calcareous skeletons like, for example stony corals and calcareous algae. In the s... Our price: $19.99 Quantity   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  Buy Now  Learn More! Click Here! Tropic Marin Calcium/Magnesium Test Kit Tropic Marin Magnesium-Calcium-Combi-Test For measuring magnesium and calcium concentrations in seawater. Magnesium and calcium concentrations and the ratio between these two elements are constantly changing in marine aquariums due to assimilation into the skeletons of corals and coralline a... Our price: $38.99 Quantity   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  Buy Now  Learn More! Click Here! Tropic Marin Hydrometer Tropic Marin Hydrometer For marine aquariums. These high precision hydrometers are handmade in Germany by experienced craftsmen. They have a maximum deviation of 0.0005. These hydrometers never need calibration. Indispensable for scientists and the committed hobbyist. The higher price wil... Our price: $33.35 Quantity   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  Buy Now  Learn More! Click Here! Tropic Marin KH Test Kit Tropic Marin KH/Alkalinity-Test Seawater For the determination of the carbonate hardness or the alkalinity in seawater. The carbonate hardness or alkalinity corresponds to the buffer capacity of the aquarium water and therefore determines the stability of the pH-value in the water. With thes... Our price: $9.49 Quantity   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  Buy Now  Learn More! Click Here! Tropic Marin Nitrate/Nitrite Test Kit Tropic Marin Nitrite-/Nitrate Test For the determination of the nitrite and nitrate concentration in freshwater and seawater. Nitrite (NO2-) is the intermediate stage of the aerobic nitrification and is highly toxic for fish and invertebrates. A too high concentration of nitr... Our price: $19.99 Quantity   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  Buy Now  Learn More! Click Here! Tropic Marin Phosphate Test Kit Tropic Marin Phosphate-Test For the determination of the phosphate concentration in fresh and seawater. Phosphates are an important food component of all plants and absolutely necessary for the metabolism of every living cell. If the plants do not take up enough phosphate, th... Our price: $15.95 Quantity   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  Buy Now