Reef zlements Kh buffer 1000ml Marine frags or you can use RO

or you can use RO pipe

Test strips are a popular choice for measuring phosphate within aquarium water

Dosage for very sick fish: 10 ml per 20 litres (5 US gallons) per day for 5 days consecutively

EHEIM AKTIV for adsorptive filtration

HYDRA 32HD and PRIME 16HD

Reef zlements Kh buffer 1000ml Marine frags or you can use ROKH Buffer Alkalinity is one of the most important parameters in a reef aquarium. Crucially should be kept stable and around 7 8dKH. In a reef aquarium, alkalinity is not only depleted by corals but also by other processes. It is therefore important to ensure stable alkalinity levels with the the use of either a 2 part system like Complete or pHplus or a simple buffer like Reef Zlements KH Buffer. 10 ml of Reef Zlements KH Buffer increases alkalinity