Ammonia Alert is an innovative color device for continuously detecting and monitoring toxic free ammonia. A sensor changes reversibly from yellow to green to blue, relative to the ammonia concentration. No test kits, chemicals, or procedures are needed. KEY FEATURES: Seachem sensor technology Continuously detects and monitors free ammonia No test kits, chemicals, or procedures are needed; just constant readings Lasts over a year Marine and freshwater Best Before Guarantee: 30/04/2026

The Alert Combo pack combines Ammonia Alert (1 card) and pH Alert® (1 card). Ammonia Alert and pH Alert are almost half the size of competing products. At 1.5" x 2.5", they are small, clear, and unobtrusive, so they won't detract from the view of your aquarium. Simply place Ammonia Alert and pH Alert visibly anywhere in the aquarium or filter. It’s that easy. No chemicals or test procedures are required.

The API® POND WIDE RANGE pH TEST KIT quickly and accurately measures the pH of pond water, and prevents the harmful effects of pond water that is either too alkaline or too acidic, which could result from minerals found in tap water, high ammonia levels in the pond, rain runoff, or overstocking of pond fish. Product reads pH levels from 5.0 to 9.0. Contains 160 tests and includes 1 test bottle, easy-to-ready instructions, glass test tube and color chart.Best Before Guarantee: 28/02/2027

Nitrite is produced in the aquarium in the forms of fish waste, uneaten food, and by nitrifying bacteria in your aquarium’s natural cycle as it breaks down ammonia. Low levels of nitrite inhibit respiration and suppress the immune system, while high levels cause suffocation in fish. The API® NITRITE TEST KIT reads nitrite levels quickly and accurately in your tank, and tests parameters from 0 to 5 ppm. Contains 180 tests and includes 1 test solution, easy-to-ready instructions, glass test tube and color chart.Best Before Guarantee: 31/05/2027

The API® FRESHWATER MASTER TEST KIT measures the 4 most important levels in freshwater aquariums quickly and accurately, including pH, high range pH, ammonia, nitrite, and nitrate. With scientific accuracy for professional results, the reusable FRESHWATER MASTER TEST KIT comes with 4 glass test tubes with snap-tight caps and a convenient holding tub for easy storage. Also includes a step-by-step instruction booklet with a color chart that provides information on how to correct unsafe water conditions. We recommend that you take a few minutes each week to monitor your aquarium conditions and create a better underwater world for your fish. Testing your aquarium water has never been so easy or accurate! Contains 800 tests and includes 7 test solutions, easy-to-ready instructions, 4 glass test tubes and color chart.Best Before Guarantee: 31/05/2027

High nitrate levels in your aquarium indicate a build-up of fish waste and organic compounds, resulting in poor water quality and an increase in algae growth. Contrarily, maintaining a low nitrate level improves the health of fish and invertebrates. Use the API® NITRATE TEST KIT to ensure that the nitrate levels in your tank are safe and healthy for your fish. The NITRATE TEST KIT reads parameters from 0 to 160 ppm and may be used for both fresh and saltwater aquariums. Contains 90 tests and includes 2 test solutions, easy-to-ready instructions, glass test tube and color chart.Best Before Guarantee: 28/05/2029

Phosphate can enter your aquarium through tap water, fish waste, and decaying organics such as uneaten food and dead algae. Excess phosphate contributes to unsightly algae and green water blooms, and in saltwater, excess phosphate can inhibit the growth of hard corals. The API® PHOSPHATE TEST KIT tests phosphate levels from 0 to 10 ppm so that you can easily monitor the condition of your aquarium water and may be used in both fresh and saltwater aquariums. Contains 150 tests and includes 2 test solutions, easy-to-ready instructions, glass test tube and 2 color charts.Best Before Guarantee: 28/04/2027

Calcium is one of the most important elements in a reef aquarium. Reef invertebrates, such as corals, crustaceans, mollusks, and even some type of encrusting algae, need calcium to grow and remain healthy. Over time, the calcium level drops as it is used by invertebrates, or as it reacts with excess phosphate. The API® CALCIUM TEST KIT measures calcium levels as low as 20 mg/L to help you keep your reef inhabitants healthy. Contains 2 test bottles, easy-to-ready instructions, and glass test tube.Best Before Guarantee: 28/04/2027

Use the API® AMMONIA TEST STRIPS as the quick and accurate way to test for the presence of ammonia. Kit reads 0 to 6 ppm of ammonia, and alerts you to unsafe ammonia levels before they can harm fish or result in fish loss. Size: 25pcs per boxBest Before Guarantee: 28/08/2026

API® 5-IN-1 TEST STRIPS are the quick and easy way to test the 5 most important aquarium water parameters – pH, KH, GH, nitrate, and nitrite – in one easy step. Simply dip one test strip directly into the aquarium, and compare the colors on the strip to the color card provided to help prevent invisible water problems that can be harmful to fish. Each kit includes detailed information on how to interpret the test results and correct unsafe water conditions. Size: 4pcs per boxBest Before Guarantee: 28/01/2026

Instructions 1. Immerse the strip for 1 second and then remove it; shake excess water off. 2. Compare against the color chart and read result immediately. Warning 1. If the water sample has color. Please decolorize it until it become colorless, and then test it. 2. If the buffer solution is weak put the test strip in and wait until the color of the test strip does not change. 3. Keep wet fingers out of the bottle, do not touch or pollute the test area of strips, and try to avoid long-time exposure of the test strips to the air. 4. Store in a cool, dry and dark place. 5. It is recommended to use up as soon as possible after opening.

Sera Glass Precision Thermometer fine scale from 0 to 50 °C. quality rubber suction cup the thermometer tolerates a temperature range from -10 to +60 °C. can be used in an aquarium, aqua terrarium, paludarium or terrarium

DIGITAL THERMOMETER 1. Touch the screen 1 second to switch between °C & °F 2. Alarm warning when temperature over 33°C 3. Back-mounted temperature sensor, ±0.5 degree accuracy 4.Battery replacement: Step 1: Insert a paper clip or a SIM-eject tool in the hole beside the tray, and press the tool.  Step 2: Slide to remove the tray, then replace the battery. Model:  TH 015 Battery Specification: CR2032/3V Temperature measurement range: 0-50°C/0-122°F Temperature measurement accuracy: ±0.5°C Temperature display resolution: 0.1°C

Dophin Thermometer for Terrarium and Reptiles Dophin thermometer is a thermometer that can be used by sticking to glass for reptile terrariums and can measure in degrees Fahrenheit. - Easy accurate reading. - Easy to read & install. - Enclosed self-adhesive sticker. - It can measure temperature in degrees, -20 - 40, in fahrenheit, in the range of 0 - 110. - Reptile thermometer, 5 x 5 cm, square in shape. - After the tape on the back is opened, it is pressed into a suitable place in the terrarium for a short time and adhered. - Care must be taken to ensure that the surface to be adhered is clean and dry.

 

Makes it easy to monitor the nitrite level in fresh and marine water Nitrite (NO2) is among the most toxic substances for fish in aquariums. It can enrich in the water in case of insufficient biological filtration. The sera NO2-Test allows monitoring the nitrite level in fresh and marine water easily and reliably. We recommend using sera bio nitrivec (freshwater), sera marin bio reefclear (marine water) or sera pond bio nitrivec (pond) in case of slightly elevated nitrite levels. In case of severe nitrite problems, sera Nitrite-minus quickly provide help. Sufficient for approx. 75 measurements. Information for use:  https://www.sera.de/fileadmin/user_upload/manuals/sourcefiles/42990_42991_42992_-INT-_sera-nitrit-test_05-2018.pdf

Used to determine the concentration of magnesium (magnesium) in a marine aquarium reagent 3 spare cartridge Attention! Reagent 1 contains sodium hydroxide. Causes severe burns. Keep Regent locked up and out of reach of children. Wear protective gloves when working. If it gets into the eyes, wash them immediately with water, consult a doctor. In case of any nausea, seek medical help and take this manual with you An optimal concentration of magnesium is needed for marine invertebrates and algae. A perfect example is red calcareous algae. These consume large amounts of magnesium to build their skeleton. Natural seawater contains approximately 1300 mg/l. If we want to achieve optimal conditions in the marine aquarium, this concentration must be observed. You can conveniently and quickly determine the concentration of magnesium in a marine aquarium using the Sera magnesium test. The concentration of magnesium can be conveniently increased in the marine aquarium with sera magnesium plus. The magnesium level can be increased with sera marin COMPONENT 6 magnesium. Reagent consumption depends on the calcium level of the checked water. Store in a cool and dark place! Instructions for use: US Information for use An optimal magnesium level is required in a marine water aquarium in order for invertebrates and ornamental algae to thrive. Calcareous red algae are a perfect example. These ornamental algae require particularly much magnesium, as they integrate this element into their skeleton. Natural marine water contains about 1,300 mg/l. This level should also be maintained in an optimal marine water aquarium. The sera magnesium-Test allows you to monitor the magnesium level in your aquarium quickly and easily. It is even easier if you have gathered testing experience by using the sera calcium-Test. You can easily increase the magnesium level in your marine water aquarium by adding sera marin COMPONENT 6 magnesium. Directions for use: Shake reagent bottles well before using! Do not allow tested water to contact aquarium or pond water!  1. Rinse the measurement vial several times with the water to be tested, then empty the vial. Dry the vial on the outside.  2. Rinse the syringe several times with the water to be tested, then fill 2 ml of it into the vial, using the syringe.  3. Add 6 drops reagent 1 and shake the vial until the liquid is evenly distributed. Possibly occurring cloudiness does not affect the test.  4. Add one level measurement spoon (included with the kit) reagent 2 into the vial and gently whirl the vial (do not shake) until the powder has dissolved.  5. Add reagent 3 drop by drop while counting the drops, release the reagent bottle from finger pressure after every 5 drops, allowing air to be drawn into the bottle. Shake vial after every drop until the color turns from pink into blue (not violet) and remains stable for at least 30 seconds whilst whirling the vial occasionally. Write down the number of drops used. 6. Empty the measurement vial, rinse it carefully with tap water and then several times with the water to be tested, then empty the vial. Dry the vial on the outside. 7. Take up 2 ml of the water to be tested into the syringe and fill it into the vial.  8. Add 6 drops reagent 4 and shake the vial until the liquid is evenly distributed. Possibly occurring cloudiness does not affect the test.  9. Add one level measurement spoon (included with the kit) reagent 5 into the vial and gently whirl the vial (do not shake) until the powder has dissolved.  10. Add reagent 3 drop by drop while counting the drops, release the reagent bottle from finger pressure after every 5 drops, allowing air to be drawn into the bottle. Shake vial after every drop until the color turns from red into green and remains stable for at least 30 seconds whilst whirling the vial occasionally. Attention – you will need considerably more drops for this measurement than for the first measurement!  11. Subtract the number of drops required for the first measurement from the result of the second measurement. Multiply the remaining number of drops by 60 to get the magnesium level in mg/l. Example: The first measurement required 4 drops, the second measurement 24 drops. If you subtract the first measurement result from the second one, 20 drops will remain. 20 drops multiplied by 60 makes 1,200 mg/l magnesium.  12. Cleaning: Clean vial and syringe thoroughly with tap water before and after each test. Close reagent bottles immediately after use and do not exchange caps. Store at room temperature and away from light. For testing ornamental fish aquariums and pond water only.   Store in a cool and dark place!

KW Zone Reptiles Digital Thermometer (Blister Card)

For the uncomplicated monitoring of marine water density The salinity (salt contents) can be deduced from the measured density. Since the salinity of marine water in an aquarium must be kept constant, the aquarium water should regularly be checked accordingly. The water to be tested is filled into a sufficiently tall water glass, and the scale of the immersed hydrometer is read off on according to its immersion depth.