The perfect alkalinity booster become... AragaMilk has a full pound of buffer in every 16 fluid ounce bottle. This buffer Comes in two forms: bicarbonate for immediate response, plus carbonate from aragonite. This second form makes for a safe, time-release buffer, over 2-3 days, for longer term security without the wild pH swings that can stress your tank inhabitants. This dual buffering makes AragaMilk an excellent way to buffer your African cichlid or livebearer aquariums too. You'll notice it will stop downward pH swings so common in large fish only marine and cichlids ups helping you create an environment for happy, healthy, and more colorful fish!