Thrive Alkalinity increases the pH and alkaline levels in your marine aquarium. Most marine aquariums will need supplementation of pH and alkalinity as often as daily to thrive. The chemical management of a salt water, reef aquarium is delicate balance. The Thrive products and Thrive Analytics were created to help you simply assess and adjust the balance of your salt water aquarium system. Alkalinity is a saturated solution of carbonates, bicarbonates, and borate salts. This product is uniquely strong and you won’t find this blend of buffers any stronger.