aragaMILK™ - Ideal for African cichlids, livebearers, and marine aquariums of all types! The perfect alkalinity booster because...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 safer, time-release buffer, over 2-3 days, for long term security without the wild pH swings that can stress your tank inhabitants. aragaMILK™ is an excellent way to buffer your African cichlid or livebearer aquariums. You'll notice it will stop that annoying "cichlid itch," helping you create an environment for happy colorful fish! The perfect calcium supplement because...aragaMILK™ has enough calcium in each 16 fluid ounce bottle to grow a full 1/2 pound of coral, and all this calcium is in a non-caustic aragonite form. With regular use, aragaMILK™ will help you maintain steady, high calcium levels with ease. No pre-mixing, no balancing act.