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How Long Does It Take to Cycle a New Reef Aquarium?

 How Long Does It Take to Cycle a New Reef Aquarium?

Setting up a new reef aquarium is exciting—but the most important step happens before you add fish or corals: cycling. Cycling builds stable populations of beneficial bacteria that convert toxic ammonia into nitrite and then into relatively harmless nitrate. How long it takes depends on your tank setup and the method you use to introduce bacteria.

In most typical reef setups, you can expect cycling to take about 3 to 6 weeks. However, timelines commonly vary fro ... Read more »

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