{"title":"Test Kits","description":null,"products":[{"product_id":"fritz-6-in-1-test-strips-100-count","title":"Fritz 6 in 1 Test Strips 100 Count","description":"\u003cp\u003eTesting your aquarium's water parameters regularly is an important part of keeping and maintaining a healthy environment for your fish and invertebrates. Fritz 6-in-1 Test Strips are a fast and efficient way to accurately measure six important parameters in both fresh and saltwater.\u003c\/p\u003e\n\n\u003cp\u003eFritz 6-in-1 Test Strips measures: pH, nitrite, nitrate, alkalinity, general hardness, and chlorine.\u003c\/p\u003e","brand":"Empire Corals","offers":[{"title":"Default Title","offer_id":52688565338391,"sku":"S2159","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/2746\/7287\/files\/si_1272_enhanced_20260313_195037_phgqp2.png?v=1775484388"},{"product_id":"fritz-alkanlinity-test-kit-variable","title":"Fritz Alkanlinity Test Kit - Variable","description":"\u003cp\u003eCarbonate hardness, or alkalinity (KH), is the measure of both carbonates and bicarbonates present in the water. The KH value of your water is important to know, as the carbonate hardness plays a significant role in the water’s pH and the water’s buffering capacity to keep that pH stable. KH naturally falls over time with the introduction of CO2 and other acids, and nitrification. Reverse osmosis water should be buffered with carbonates before use to raise and maintain KH. Some municipal tap water can have variable KH levels throughout the year and should be checked regularly. In saltwater tanks, KH can be tested to monitor the proper ionic balance when dosing.\u003c\/p\u003e\n\n\u003cp\u003eSoft water fish, like Discus and other South American cichlids - 0 to 4 dKH (0 - 70 ppm)\u003c\/p\u003e\n\n\u003cp\u003eTropical community fish, like tetras and betta - 4-8 dKH (70 - 140 ppm)\u003c\/p\u003e\n\n\u003cp\u003eAfrican rift lake cichlids - 8 to 12 dKH (140 - 215 ppm)\u003c\/p\u003e\n\n\u003cp\u003eMarine species - 8 to 12 dKH (140 - 215 ppm)\u003c\/p\u003e","brand":"Empire Corals","offers":[{"title":"Default Title","offer_id":52688565534999,"sku":"S1639","price":12.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/2746\/7287\/files\/si_1275_enhanced_20260313_195145_nvyjsn.png?v=1778020790"},{"product_id":"fritz-ammonia-test-kit-130-tests","title":"Fritz Ammonia Test Kit - 130 Tests","description":"\u003cp\u003eAmmonia is one of the most important parameters to monitor in aquariums because any amount can be toxic to livestock if it is not addressed right away. Ammonia is commonly elevated in new tanks while establishing the beneficial biological filter. High ammonia can also be present in established aquariums from lack of maintenance, overstocking, or when the bio filter has been interrupted by medication. Ammonia can reach lethal levels very rapidly, and should be tested immediately in the case of fish illness or death. Monitor ammonia levels closely when using any medications or treatments.\u003c\/p\u003e\n\n\u003cp\u003eThe ammonia level in any tank should ideally always be at 0 ppm. Symptoms for acute and chronic ammonia poisoning include: heavy breathing and gasping at surface; clamped fins; discoloration; increased occurrence of disease; death.\u003c\/p\u003e","brand":"Empire Corals","offers":[{"title":"Default Title","offer_id":52688565600535,"sku":"S1636","price":16.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/2746\/7287\/files\/si_1276_enhanced_20260313_195206_ae73fh.png?v=1778020791"},{"product_id":"fritz-calcium-test-kit-variable","title":"Fritz Calcium Test Kit - Variable","description":"\u003cp\u003eCalcium (Ca2+) is vital to many biological functions. In saltwater aquariums, calcium should remain in the proper ionic balance along with alkalinity (KH) and magnesium (Mg2+). A calcium level outside of this ionic balance can cause poor coral skeleton growth and tissue necrosis. Calcium uptake in reef aquariums can change over time and should be regularly tested to ensure proper dosing.\u003c\/p\u003e\n\n\u003cp\u003eThough more closely maintained in saltwater systems, freshwater aquariums also require routine monitoring of calcium. Plants require calcium for proper leaf growth and other functions. Invertebrates, such as shrimp and snails, require the right amount of calcium to maintain shell integrity and prevent molting problems.\u003c\/p\u003e\n\n\u003cp\u003eTropical community fish: 75+ ppm calcium\u003c\/p\u003e\n\n\u003cp\u003eAfrican cichlids: 120+ ppm calcium\u003c\/p\u003e\n\n\u003cp\u003eMarine aquariums: 300 to 400 ppm calcium\u003c\/p\u003e\n\n\u003cp\u003eReef aquariums: 400 to 450 ppm calcium\u003c\/p\u003e","brand":"Empire Corals","offers":[{"title":"Default Title","offer_id":52688565928215,"sku":"S1643","price":13.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/2746\/7287\/files\/si_1282_enhanced_20260313_195440_jasg5b.png?v=1778020795"},{"product_id":"fritz-copper-test-kit-90-tests","title":"Fritz Copper Test Kit - 90 Tests","description":"\u003cp\u003eCopper is commonly used in aquariums to treat external parasitic infections, like Ich and velvet. It is crucial to closely monitor copper used in aquariums to ensure the correct dose has been applied, especially in volumes of water that are unknown and with copper-sensitive species. This allows the treatment to be effective against the parasites, but still safe for the fish. Some types of copper (e.g. ionic copper) requires redosing to maintain a therapeutic concentration and should be monitored regularly. Water should also be tested after treatment to confirm a zero ppm copper concentration before reintroduction of any invertebrates. Copper can also contaminate some tap water and should be avoided or treated before use in systems that contain desirable invertebrates.\u003c\/p\u003e","brand":"Empire Corals","offers":[{"title":"Default Title","offer_id":52688567271703,"sku":"S1641","price":13.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/2746\/7287\/files\/si_1292_enhanced_20260313_195804_xublj5.png?v=1778020801"},{"product_id":"fritz-general-hardness-test-kit-variable","title":"Fritz General Hardness Test Kit - Variable","description":"\u003cp\u003eGeneral hardness (GH) is commonly overlooked in many aquariums, but this parameter plays a very important role in your aquariums overall health. GH is the total mineral content of calcium and magnesium in the water. These are important for various biological functions in fish, invertebrates, and even plants. Deficiencies of calcium and magnesium can cause poor growth and faded colors in fish, molting difficulties in shrimp, improper leaf development on plants, or thin, brittle snail shells.\u003c\/p\u003e\n\n\u003cp\u003eFreshwater systems will typically have a GH of 4-8 dGH (70-140 ppm). Soft water species like Discus prefer very soft water below 4 dGH (140 ppm).\u003c\/p\u003e","brand":"Empire Corals","offers":[{"title":"Default Title","offer_id":52688569008407,"sku":"S1640","price":12.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/2746\/7287\/files\/si_1307_enhanced_20260313_200251_6duby6.png?v=1778020811"},{"product_id":"fritz-nitrate-test-kit-90-tests","title":"Fritz Nitrate Test Kit - 90 Tests","description":"\u003cp\u003eNitrate is considered the non-toxic end product of the ammonia cycle. While not directly a problem for fish at low levels, excess nitrates can cause stress and other water quality issues. Nitrate is continually produced as fish respire and released waste products move through the ammonia cycle, and can accumulate rapidly if not properly maintained. The nitrate level should be monitored regularly and routine maintenance is needed to keep concentrations low for a healthy aquarium. High levels of nitrate can also contribute to undesirable algae growth.\u003c\/p\u003e\n\n\u003cp\u003eThe nitrate level in an established tank will always be above 0 ppm.\u003c\/p\u003e\n\n\u003cp\u003eAcceptable level of nitrate in most freshwater aquariums: 20-40 ppm nitrate\u003c\/p\u003e\n\n\u003cp\u003eAcceptable level of nitrate in most saltwater aquariums: below 20 ppm nitrate\u003c\/p\u003e","brand":"Empire Corals","offers":[{"title":"Default Title","offer_id":52688569827607,"sku":"S1638","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/2746\/7287\/files\/si_1322_enhanced_20260313_200815_zzy7ou.png?v=1778020819"},{"product_id":"fritz-nitrite-test-kit-180-tests","title":"Fritz Nitrite Test Kit - 180 Tests","description":"\u003cp\u003eNitrite is produced continually during the ammonia cycle by nitrifying bacteria in the biological filter. While not as immediately toxic as ammonia, any accumulation of nitrite should still be addressed as soon as possible. The nitrite level will eventually be broken down to non-toxic nitrate. Regular testing for nitrite is recommended - chronic exposure to even low levels of nitrite can cause brown blood disease in fish, which can cause suffocation and death.\u003c\/p\u003e\n\n\u003cp\u003eWith the exception of a system establishing a biological filter and progressing through the nitrogen cycle, the nitrite level in any tank should ideally be zero.\u003c\/p\u003e","brand":"Empire Corals","offers":[{"title":"Default Title","offer_id":52688569860375,"sku":"S1637","price":13.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/2746\/7287\/files\/si_1323_enhanced_20260313_200838_t50ghr.png?v=1778020820"},{"product_id":"fritz-phosphate-test-kit-90-tests","title":"Fritz Phosphate Test Kit - 90 Tests","description":"\u003cp\u003eExcess nutrients can lead to poor water quality very quickly. If not controlled, phosphate (PO4) can rapidly build up in aquariums from fish waste and uneaten food, decomposing algae and other organic matter, and aquarium supplements and tap water that contain phosphate. Phosphate is important to the aquarium in many ways, but when it accumulates too rapidly it can contribute to undesirable algae blooms. In saltwater systems, high phosphate can also affect the calcium and magnesium levels, inhibiting proper coral growth. Conversely, too low phosphate can limit nitrifying bacteria’s ability to convert nitrite to nitrate. Phosphate is also necessary for aquatic plants to photosynthesize.\u003c\/p\u003e","brand":"Empire Corals","offers":[{"title":"Default Title","offer_id":52688569991447,"sku":"S1642","price":16.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/2746\/7287\/files\/si_1327_enhanced_20260313_201011_iqztnr.png?v=1778020822"},{"product_id":"fritz-wide-range-ph-test-kit-250-tests","title":"Fritz Wide Range pH Test Kit - 250 Tests","description":"\u003cp\u003eTesting the pH of your aquarium water regularly to make proper adjustments is crucial to keep your fish, plants, and other aquarium animals healthy and stress-free. pH is the measure of acidity or basicity of liquids. Acidic water will measure between 0 and 7 pH, while basic, or alkaline, water will measure between 7 and 14. Knowing your animals is important: the preferred pH range of each species in your aquarium can vary.\u003c\/p\u003e\n\n\u003cp\u003eA consistent pH reading is more ideal than frequent changes up or down. pH is influenced in the aquarium by many factors, including the KH content, respiration, organic waste decomposition, even the ammonia cycle. Because of this, frequent testing is recommended. Established systems should be tested once a month, and new systems or aquariums with fish illness or death should be monitored more often. Establishing a baseline pH of your aquarium throughout your normal routine will help alert you to problems early on. Any unexpected pH change can indicate water quality issues and should be addressed right away.\u003c\/p\u003e","brand":"Empire Corals","offers":[{"title":"Default Title","offer_id":52688570614039,"sku":"S1635","price":11.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/2746\/7287\/files\/si_1346_enhanced_20260313_201639_ncvacs.png?v=1778020833"},{"product_id":"tropic-marin-compact-lab-essentials-test-kit","title":"Tropic Marin Compact Lab Essentials Test Kit","description":"\u003cp\u003eOne Set - 5 Parameters - Over 250 Tests!\u003c\/p\u003e\n\n\u003cp\u003e100 pH Tests\u003c\/p\u003e\n\n\u003cp\u003e100 Alkalinity Tests\u003c\/p\u003e\n\n\u003cp\u003e50 Phosphate Tests\u003c\/p\u003e\n\n\u003cp\u003e50 Nitrite\/Nitrate Tests\u003c\/p\u003e\n\n\u003cp\u003e50 Ammonium\/Ammonia Tests\u003c\/p\u003e\n\n\u003cp\u003eBeing able to make quick and precise water quality assessments is vital and Tropic Marin Compact Lab Essentials Test Kit. includes the necessary test kits every professional reefer needs.\u003c\/p\u003e","brand":"Empire Corals","offers":[{"title":"Default Title","offer_id":52688591618327,"sku":"S1240","price":66.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/2746\/7287\/files\/si_1141_enhanced_20260313_190719_qf6gd6.png?v=1778021175"},{"product_id":"tropic-marin-hydrometer","title":"Tropic Marin Hydrometer","description":"\u003cp\u003eFeatures\u003c\/p\u003e\n\n\u003cp\u003e- High precision hydrometer for determining the specific gravity in aquariums\u003c\/p\u003e\n\n\u003cp\u003e- Maximum deviation: 0.001 at 77° F (25° C)\u003c\/p\u003e\n\n\u003cp\u003e- Scale from 1.021 to 1.031\u003c\/p\u003e\n\n\u003cp\u003e- Resolution: 0.0001\u003c\/p\u003e\n\n\u003cp\u003e- Handmade\u003c\/p\u003e\n\n\u003cp\u003eHigh precision hydrometer for determining the specific gravity in aquariums.\u003c\/p\u003e\n\n\u003cp\u003eMany tank inhabitants are sensitive even to minor changes of the water conditions. For an exact, reliable measure of the specific gravity, Tropic Marin® offers a high-precision instrument. The hydrometer is handmade and designed to float vertically in the water.\u003c\/p\u003e\n\n\u003cp\u003eThe maximum deviation is about 0.001 at 77° F (25° C).\u003c\/p\u003e","brand":"Empire Corals","offers":[{"title":"Default Title","offer_id":52688591847703,"sku":"S1554","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/2746\/7287\/files\/si_1147_enhanced_20260313_190859_gndkg8.png?v=1778021180"},{"product_id":"tropic-marin-nitrite-and-nitrate-test-kit","title":"Tropic Marin Nitrite and Nitrate Test Kit","description":"\u003cp\u003eNitrite (NO2–) and nitrate ions (NO3–) are formed from ammonium (NH4+) as part of the nitrification process. Nitrite, which is highly poisonous to freshwater species, is produced in the first stage of the bacterial process. If the nitrification process works, nitrite is converted to nitrate in the second stage. Higher concentrations of nitrate in saltwater aquariums will end up inhibiting the growth of delicate corals. A danger posed by high nitrate content for all aquariums is the strong boost it provides to algae growth. In rare cases, nitrate shortages can also occur. Therefore, the concentrations of nitrite and nitrate in the aquarium water should be tested regularly.\u003c\/p\u003e\n\n\u003cp\u003eAs a general rule, the nitrite concentration should be less than 0.2 mg\/l (ppm) in all aquariums wherever possible. The nitrate concentration should not exceed 20 mg\/l (ppm) in saltwater aquariums. When nurturing hard corals, the aim is to keep the nitrate concentration below 10 mg\/l (ppm). It is advisable to keep the nitrate concentration in freshwater aquariums below 50 mg\/l (ppm). Lower limits for nitrate depend on the general conditions in the aquarium.\u003c\/p\u003e\n\n\u003cp\u003eWith the Tropic Marin Nitrite\/Nitrate-Test the nitrite and nitrate concentrations can be determined using a finely-tuned color chart which has a range of concentrations for nitrite of between 0 – 2 ppm and for nitrate of between 0 – 50 ppm.\u003c\/p\u003e\n\n\u003cp\u003eNO2 Measurement Range 0 - 2 ppm\u003c\/p\u003e\n\n\u003cp\u003eNO3 Measurement Range 0.5 - 50 ppm\u003c\/p\u003e\n\n\u003cp\u003eNO2 Accuracy of 0.02 ppm\u003c\/p\u003e\n\n\u003cp\u003eNO2 Accuracy of 0.5 ppm\u003c\/p\u003e\n\n\u003cp\u003eUp to 50 Tests\u003c\/p\u003e","brand":"Empire Corals","offers":[{"title":"Default Title","offer_id":52688592011543,"sku":"S1389","price":34.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/2746\/7287\/files\/si_1150_enhanced_20260313_191012_pm1nra.png?v=1778021182"},{"product_id":"tropic-marin-pro-kh-test-kit","title":"Tropic Marin Pro KH Test Kit","description":"\u003cp\u003eAlkalinity is probably the easiest test and by doing routine alkalinity tests it is easy to keep a pulse on your aquariums carbonate intake. The intake of carbonate by corals is done in a relatively balanced ratio and can also be used to know when to dose other additives. Tropic Marin Pro kH Test Kit is perfect for any reefer that wants reliable and repeatable alkalinity tests. The two-part reagent system allows for more precise reading than competitors while holding a tight range of error.\u003c\/p\u003e\n\n\u003cp\u003eMeasurement Range of 01. - 20 dKH\u003c\/p\u003e\n\n\u003cp\u003eAccuracy of 0.1 dKH\u003c\/p\u003e\n\n\u003cp\u003eUp to 100 tests @ 0.2dKH resolution or 50 tests @ 0.1dKH resolution\u003c\/p\u003e\n\n\u003cp\u003eConversion Table Included\u003c\/p\u003e","brand":"Empire Corals","offers":[{"title":"Default Title","offer_id":52688592470295,"sku":"S1388","price":35.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/2746\/7287\/files\/si_1165_enhanced_20260313_191526_txs0h4_01bb2787-50a8-449a-9faf-966b08396cdf.png?v=1778021191"},{"product_id":"tropic-marin-pro-phosphate-po4-test-kit","title":"Tropic Marin Pro Phosphate PO4 Test Kit","description":"\u003cp\u003ePhosphates (PO43–) are important nutrients for all plants and are vital for the energy metabolism of every living cell. Phosphates are released into the aquarium water via food and the decomposition process of organic matter. However, an unregulated increase in the phosphate concentration creates problems, such as significant algae growth. In addition, phosphates in saltwater aquariums can seriously inhibit the deposition of calcium carbonate in the skeleton formation process of hard corals and, in turn, for their growth. On the other hand, there can be a shortage of phosphate if there is a high stock of plants and\/or corals and a low fish population. In this situation, phosphate will need to be added.\u003c\/p\u003e\n\n\u003cp\u003eThe phosphate concentration in natural saltwater is approximately 0.06 mg\/l (ppm). However, the phosphate concentration in coral reefs may be much lower, typically between 0.01 and 0.02 mg\/l (ppm). The objective is to establish an appropriate level in relation to the number and type of aquarium inhabitants. In freshwater applications, a phosphate concentration of up to 0.4 mg\/l (ppm) is suitable; however, 1 mg\/l (ppm) should not be exceeded. Even a concentration of 0.02 mg\/l (ppm) is adequate for supplying aquatic plants with nutrients. Therefore, the phosphate concentration in the aquarium water should be tested regularly.\u003c\/p\u003e\n\n\u003cp\u003eWith the Tropic Marin PO4-Test, the phosphate content can be determined using a finely-tuned color chart which has a concentration range of 0.03 – 1 ppm.\u003c\/p\u003e\n\n\u003cp\u003eMeasurement Range of 03. - 1.0 mg\/L(ppm)\u003c\/p\u003e\n\n\u003cp\u003eAccuracy of 0.05 mg\/L(ppm)\u003c\/p\u003e\n\n\u003cp\u003eUp to 50 Tests\u003c\/p\u003e\n\n\u003cp\u003eConversion Table Included\u003c\/p\u003e","brand":"Empire Corals","offers":[{"title":"Default Title","offer_id":52688592896279,"sku":"S1387","price":37.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/2746\/7287\/files\/si_1166_enhanced_20260313_191545_vjwklb.png?v=1778021192"},{"product_id":"tropic-marin-professional-lab-test-kit","title":"Tropic Marin Professional Lab Test Kit","description":"\u003cp\u003eTropic Marin Professional Lab is a complete test kit for monitoring water values in marine aquariums. It contains highly precise tests for phosphate, nitrite, nitrate, calcium, magnesium, and carbonate hardness. Reference solutions for Multi-Standard and NP-Standard, as well as illustrated instruction manuals, are also included.\u003c\/p\u003e\n\n\u003cp\u003eFeatures\u003c\/p\u003e\n\n\u003cp\u003eComprehensive saltwater testing in a handy, organized case\u003c\/p\u003e\n\n\u003cp\u003eContains tests for calcium, magnesium, KH\/alkalinity, phosphate, nitrite \u0026amp; nitrate\u003c\/p\u003e\n\n\u003cp\u003eEnough for approximately 50 applications\u003c\/p\u003e\n\n\u003cp\u003eAs soon as reagents are exhausted, the Professional Lab kit can be easily refilled with Tropic Marin Refill Packs.\u003c\/p\u003e\n\n\u003cp\u003eWhat’s Included?\u003c\/p\u003e\n\n\u003cp\u003e1 x Pro Calcium\/Magnesium Test (50 individual tests)\u003c\/p\u003e\n\n\u003cp\u003e1 x Pro KH Test (50 individual tests)\u003c\/p\u003e\n\n\u003cp\u003e1 x Pro Nitrite\/Nitrate Test (50 individual tests)\u003c\/p\u003e\n\n\u003cp\u003e1 x Pro Phosphate Test (50 individual tests)\u003c\/p\u003e\n\n\u003cp\u003e1 x Multi-Standard Solution\u003c\/p\u003e\n\n\u003cp\u003e1 x NP-Standard Solution\u003c\/p\u003e","brand":"Empire Corals","offers":[{"title":"Default Title","offer_id":52688593092887,"sku":"S1397","price":229.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/2746\/7287\/files\/si_1170_enhanced_20260313_191655_xlxy3t.png?v=1778021195"},{"product_id":"fritz-alkanlinity-kh-test-kit-variable","title":"Fritz Alkanlinity (KH) Test Kit - 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