Hanna Instruments Phosphate and Phosphorus ULR Checker Colorimeters: What YOU Need To Know

http://mdshop.us/2muygHl Phosphate levels are an important parameter to monitor in reef tanks because elevated phosphate levels can lead to nuisance algae growth and impeded the growth of your corals.  Phosphates are required for many of the biological processes in your tank to take place but they must be kept within manageable levels in order for your reef tank to thrive.