Reef Multi-Test comprises everything you need to carry out up to 145 tests (combined) of the 4 key water parameters to maintain a healthy and thriving reef aquarium: KH, magnesium, calcium & phosphate. The tests are a mixture of liquid drop and titration tests for improved accuracy and come with all the equipment required to carry out the tests including syringes, pipettes and titration vessels. Full instructions are included detailing optimum levels and suggestions for correction. As well as the colour charts, the back of the box also details easy to follow step-by-step pictorial instructions. Colour coded stickers for the syringes and titration vessels are also included to ensure the same test is always carried out with the same equipment to avoid contamination. The Reef Multi-Test is designed to be used alongside the Marine Multi-Test to provide a full testing system for your reef aquarium.