? COMPACT & PORTABLE ?: The test kit is packaged in a compact cardboard box, providing convenience when conducting the tests, as well as when storing the tests. This guarantees a quick and easy response when your marine water needs testing. ? EASY TO USE ?: Full instructions are included detailing optimum levels and suggestions for correction, along with an integrated test tube rack. Simply follow the easy-to-read pictorial instructions and compare the test tube to the colour chart. Complete with 4 test tubes and a set of colour coded stickers to allow you to label both the test tubes and lids to ensure the same test is always carried out in the same test tube to avoid contamination. ? SUCCESSFUL FISH KEEPING ?This test kit reports concentration in terms of nitrogen (NH3-N), (NO2-N) or (NO3-N) to be compatible with reported safe concentrations as they apply to fish and plants. The Multi-Test is designed to be used alongside the Marine Reef Multi-Test (sold separately) to provide a full testing system for your reef aquarium. ? ACCURATE LIQUID DROP TESTS ?: All the tests are liquid drop tests from a dropper bottle to ensure the drops are the same size. This method of testing is significantly more precise compared to using dip strips. The use of liquid reagents guarantees accurate and dependable results for each parameter, simplifying the process of monitoring and maintaining ideal water conditions in your marine aquarium. ? 4 IN 1 TEST KIT ?: Our multi-test kit enables marine aquarium owners to effortlessly assess 4 key water parameters using a single test kit. These tests include Ammonia, Nitrite, Nitrate and pH.