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How to Cure Live Rock for a Salt Water Fish Tank

Contributor
By Paul Bright
eHow Contributing Writer
(0 Ratings)

Saltwater fish tanks can be a beautiful piece of living art. One amazing feature of a self-sufficient tank is live rock. Live rock in saltwater fish tanks act as a natural filtration system, which can save you time and money by reducing the number of times you have to test water and change it out. Live rock can also be expensive so if you encounter any live rock that has been out of the tank for awhile, or your live rock is "dead," there is a way to get it back as a beautiful filter and anchor for coral or plants.

Difficulty: Moderate
Instructions

Things You'll Need:

  • Live rock
  • Fish tank heater
  • Air pump
  • Water circulator (optional)
  • Hydrometer
  • Large container with lid or extra fish tank
  1. Step 1

    Place the live rock inside a measured container big enough to cover the rock with at least 3 inches of water. Fill the container with properly mixed saltwater. Make sure you get a quality brand of saltwater made for saltwater fish tanks and not some off-brand. The higher quality salt you have, the better chances of reviving the live rock. Use a hydrometer to ensure you have the proper salinity mix.

  2. Step 2

    Insert a fish tank heater into the container and set it between 78 and 80 degrees. Make sure it is fully sealed with no chance of shorting out. You’ll be in for a shock if you don’t.

  3. Step 3

    Add some circulation to the live rock saltwater. You can do this by either putting in a bubble maker, a standard air pump or even a specialized water circulator.

  4. Step 4

    Cover the live rock container and place it outside, because as the dead stuff comes off of the rock, it will start to stink. You’ll need to leave some room for the air to escape (an opening about 1/4 of the container should do), but not too big of an opening or else the water will start to evaporate.

  5. Step 5

    Wait one week or so (or when the smell goes away) and then test the water for nitrites and ammonia. If everything is good, the rock is ready for transfer to the saltwater tank. Wait another week so that your tank can process the new bioload and properly cycle before you add new livestock.

Tips & Warnings
  • Keep the rock out of sunlight to prevent early algae growth.

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