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Results 1 to 10 of 26
  1. Default Beginner Fresh Water Tank. Questions.

    0 Not allowed!
    My tank is at a 7.6PH
    Ammonia is below .25
    Nitrite was at 0ppm
    Nitrate was at 10ppm

    I recently added 6 sunshine guppys and 6 rainbow guppys.

    I have an AHEIM canister filter. Classic.

    My tank is octagon and i'm not sure if it's more than a 50 gallon but it at least that size. I have had the filter running for 30+ days before adding fish. I have the carbon and whatever the "best" stuff the fish store recommended.

    I have air stones at the bottom and the filter is running well. (now that the propeller was fixed)

    2 of my gupps died. One got sick looking after 24 hours and then died.. and then another one was sick... both rainbow gups. Other fish look okay and happy and active. So... could they have been sick fish??? What should I do next. I'm thinking a water change???

    I need help in what I should do. I'm worried about the fish I have in there... and want to prevent death.

    Thanks in advance. Novice gup owner.

  2. Default

    2 Not allowed!
    read up on cycling with fish.

    Sadly, running the filter for any period of time before fish doesn't do anything unless you cycle the tank

  3. #3


    3 Not allowed!
    As above, it sounds like you didn't cycle your tank.

    Start 50% water changes now, daily, until you understand the cycle and your test results. Many people (often on advice of the shops, sadly) don't fully grasp how to prepare a tank for fish. I was one of them, although I was lucky to get online advice very quickly and started daily 50% water changes with Prime and didn't lose another fish after that. By the time my test kit actually arrived I had a cycled tank and I totally swear by regular and frequent water changes.
    55g planted: 10x adult guppies, 9x kuhli loaches, 7x black neons, 2x neons, 6x Amano shrimp, assassin snails & cherry shrimp

    10g planted: Occasional platies & black devil trumpet snail

  4. #4


    0 Not allowed!
    Hello and welcome to the forum. Sorry it had to be under such circumstances. I would like to applaud you for giving clear information on your parameters. It's rare. I was in the same boat you were in. I have one question. You say the impeller on your filter needed fixing? Was the filter NOT running for a while? If so, how long ago?
    Increasing your biodiversity increases your stability.

    You know what this tank needs? ........................ Crypts.

  5. Default

    0 Not allowed!
    It was not working at beginning of setup. I did empty 60% of the water.... and then let the "filter do it's job" as was recommended by the fish store. I didn't even know about cycling. I was told to just let filter run for a minimum of two weeks. :(
    I will do a 50% water change on the tank tonight. I should be using water conditioner? Yes. Thanks for your help. How many days should I be doing 50% water changes for.. until what reading. I'm assuming until all traces of ammonia are gone???

  6. #6


    1 Not allowed!
    The filter is just the place where bacteria grows in high concentrations. This bacteria eats ammonia and nitrites. Just letting a tank run empty won't feed this bacteria, so when we do a fishless cycle we add pure ammonia to the tank to feed this bacteria until it is strong enough to handle the ammonia produced by the fish. You will know your tank is cycled when the ammonia is 0, the nitrites are 0 and the nitrates are between 5 and 20 ppm. I asked about the filter because I wondered if it had been recent since a broken filter means the bacteria aren't getting fed. Since it was at the start of your set up, this is now a moot point. You do have one thing going for you. Small fish with small bioload in a large tank. This will help you out a lot since your levels of ammonia won't rise as fast.
    Increasing your biodiversity increases your stability.

    You know what this tank needs? ........................ Crypts.

  7. Default

    1 Not allowed!
    I hate store employees that tell ppl stuff like that....

    Yes, it is a relatively long process (couple weeks at least) where you will need to monitor the water conditions and keep up on water changes

    You want ammonia and nitrite to be 0

  8. Default

    1 Not allowed!
    UGH -I should have come to this forum first. I assumed I was given good information. I started this journey back in FEBRUARY and had plenty of time to do what was needed. Me and the kids were so excited about getting fish and thinking we were more than ready. I should have known better.

    Well, now I will be replacing 50% of water every day until further notice.

  9. #9


    2 Not allowed!
    LFS employee advice is shoddy at best sometimes...yes, as long as you are showing ANY ammonia, you need to do daily water changes to get the reading down below .25 on ammonia...unless you are using well water, you MUST use water conditioner...get some Seachem Prime, it's good stuff

    Read and fully understand the "cycling with fish" sticky in the beginner forum
    10 Gallon Beginner Tank... Journal
    40 Gallon Breeder: ... Journal
    29 Gallon: ... Journal

    “If there are no dogs in Heaven, then when I die I want to go where they went” - Will Rogers

  10. #10


    1 Not allowed!
    So there are ten guppies in a 50ish gallon tank. Do you guys think 50% is really necessary?
    Increasing your biodiversity increases your stability.

    You know what this tank needs? ........................ Crypts.

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