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Results 1 to 7 of 7
  1. Default How many fish to cycle with?

    0 Not allowed!
    I am going to cycle a 75 gal tank. With a tank that large, can I cycle with a dozen zebra danio? Or start with less? A half dozen?


  2. #2


    0 Not allowed!
    You can start with more than a dozen. I cycled my 29 gallon with 14 glowlight tetra.

  3. #3


    0 Not allowed!
    +1 - that's a larger tank and you need enough fish to produce enough ammonia to start bacteria growing, but not too many that there's too much ammonia because then you're taxing a filter that can't process it yet and it'll build up fast.

  4. #4


    0 Not allowed!
    +1 to the above

    Just to add another option, have you considered cycling the tank without any fish ?
    If you take your time to do the research FIRST, you can successfully set-up and keep ANY type of aquarium with ease.
    "Not using a quarantine tank is like playing Russian roulette. Nobody wins the game, some people just get to play longer than others." - Anthony Calfo
    Fishless Cycle Cycling with Fish Marine Aquarium Info [URL=""]

  5. Default

    0 Not allowed!
    I'm with Cliff on this one. I could barely stand to do it fishless. I can't imagine having to do it with. Good luck!
    130g: 4 Angelfish, 2 Roseline Sharks, 12 Conga Tetras, 5 Kuhli Loaches, 1 Otocinslus, 1 Corydora

  6. #6


    0 Not allowed!
    Good point. Less work and worry.

  7. #7


    0 Not allowed!
    I would get an ammonia and cycle this tank fishless instead of with fish. less problems for you and no stressed fish.
    Da name's Paul. Not Dave. ROFL

    Learn to give and take. That's how things should always work.

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