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nitrogen cycle

  1. New To The Freshwater Aquarium Hobby
    Hello, I am new here and new to the hobby. I know this was a rookie mistake but I went online and bought a 20 gallon tank off someone, wasn't until shortly before I got there that I found out it had fish in it!!! The fish were bagged and the tank was about 80% emptied. I brought it home, set up...
  2. Grasor Water Quality Graph

    Grasor Water Quality Graph

    Water Quality Graph, Initial Tank Break-in, Nitrogen Cycle. Noted that my home tap water contains 1.0-2.0 ppm Ammonia on 1/3/12 so I stopped water changes until I can get a source of Ammonia free water.
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