Put RO water and salt in. Tank was previously used as marine aswell. So was filter. Will it still cycle?

I wasn’t sure that it would still cycle. Used mature filter sponge. I have tested it and nitrate and nitrate and both are at zero. Is it ready? Thanks


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3 Responses to “Put RO water and salt in. Tank was previously used as marine aswell. So was filter. Will it still cycle?”

  • Chris C:

    How long ago did you set this up? And how big is the tank? The filter isn’t the only thing that holds the beneficial bacteria. There’s loads in the substrate and on the live rock. If you emptied everything out, then yes you need to cycle.

    Try adding some food so it will break down and feed the bacteria. Generally, wait until you see nitrate levels start to rise. This means that the bacteria have taken care of the ammonia and nitrite.

    Sounds like you know what you’re doing. You could throw in a couple cheap damsels and see how they do in there. They will also help with the cycle and will survive any ammonia or nitrite spikes.

  • shortcake:

    If you used a mature filter sponge it should be…as long as it hadn’t dried out…but if you add fish…try only two at a time a week a part just to be sure.

  • PyRo:

    i would add a cocktail shrimp and test. there are still bacteria on the spoonge but that is seeding, you need to give the bacteria some time to sprerad over the substarate, live rock, ect.

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