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How do you lower alkalinity in salt water aquarium?

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February 16, 2008 4:44AM

ive just started my own saltwater tank myself, and my alkalinity is at a 5, well im tryin to get to a 3.5 or 4. from whut ive been told by alot of local pet stores, and Vets Pets, one of the best stores for saltwater, that the best way is to do a water change. anywhere from 10to 25% depending on the size of the tank.