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  1. #1

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    Question Strange Growth on Rock


    0 Not allowed!
    Greetings,

    Quick question: I am in the process of cycling a 29 gallon using the fishless method. Current water parameters are:
    Ammonia 1 ppm, level maintained by adding ammonia every morning
    Nitrites 5ppm, reading as the maximum on the color chart, so it could be higher
    Nitrates approx 20 ppm

    I'm a little surprised to be reading nitrates so early on in the process (less than two weeks). I thought it would take a while longer for them to show up.

    My question is that I've noticed a fuzzy, white moldy growth on one of the large rocks. I have attached pics.

    I wonder if I should take the rock out and scrub it off with a coarse brush and let it sit in a separate bucket for a while, or perhaps boil it on the stove. Or maybe just leave it alone? What do you all think?
    Attached Images Attached Images
    • File Type: jpg 2.JPG (114.0 KB, 25 views)
    • File Type: jpg 1.JPG (104.0 KB, 18 views)

  2. #2

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    Default


    0 Not allowed!
    First off, your nitrites are too high and will interfere with the cycling - do a large water change to get the nitrites below 1 ppm. Your dosing of ammonia is excellent. Your nitrates are high, but the WC for the nitrites will fix that too.

    The growths look a little like fungus but I'm no expert - others may have more information. If it is a fungus, I'm at a lost to know what it could possibly feed on.
    Knowledge is fun(damental)

    A 75 gal with eight Discus, fake plants, and a lot of wood also with sand substrate. Clean up crew is down to just two Sterba's Corys. Filters: continuous new water flow; canister w/UV, in-tank algae scrubber!! Finally, junked the nitrate removal unit from hell.

    For Fishless cycling:http://www.aquaticcommunity.com/aqua...ead.php?t=5640

  3. #3

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    Default


    0 Not allowed!
    Alrighty - one large water change coming up as soon as I get home from work this evening. I assume that since the tank is still cycling, I should avoid stirring up the gravel? Is 50% too much water to change?

  4. #4

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    Default


    0 Not allowed!
    I wish I could help identify what that stuff is growing on your rock. Just to safe, I would suggest just cleaning that stuff off. Better safe than sorry

    I would also wait a few days before doing any waterchanges. The nitrite eating bacteria grows a lot slower than the bacteria that eats your ammonia so they will need time to catch up. If you don't see the nitrite levels changing after about 5 days, then I would suggest about a 50% waterchange.

    As you already have a good level of nitrates, I'm guessing the nitrite eating bacteria is off to a good start and just needs a little more time.
    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="http://saltwater.aquaticcommunity.com/"]

  5. #5

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    Default


    0 Not allowed!
    I agree with Cliff. If you're doing a fishless cycle, then there really is no need to be doing any water changes at all. In my opinion, those perameters look great to set up a very nicely cycled tank. I would leave it alone and let it run its course.
    Three-fourths of the Earth's surface is water, and one-fourth is land. It is quite clear that the good Lord intended us to spend triple the amount of time fishing as taking care of the lawn. ~Chuck Clark

  6. #6

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    Default


    0 Not allowed!
    I now agree with Cliff - the water change should wait. Lowering the nitrites that low would interfere with the nitrite growth. I was thinking ammonia levels ... .
    Knowledge is fun(damental)

    A 75 gal with eight Discus, fake plants, and a lot of wood also with sand substrate. Clean up crew is down to just two Sterba's Corys. Filters: continuous new water flow; canister w/UV, in-tank algae scrubber!! Finally, junked the nitrate removal unit from hell.

    For Fishless cycling:http://www.aquaticcommunity.com/aqua...ead.php?t=5640

  7. #7

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    Default


    0 Not allowed!
    OK - water change, cancelled!

    But what about the fuzzy white stuff? Leave it, or attempt to remove it? I could swing by the hardware store on the way home and grab a coarse metal brush.

  8. #8

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    Happy Christmas - MuckyFish   thanks for advising on vegetables for my kribs! so here is a discus - ScottishFish   You help a lot - PhillipOrigami   For the bank account, and thx for the rep - Cliff   beautiful discus! - Crispy   

    Smile


    0 Not allowed!
    Good idea to clean it off but isn't a wire brush rather aggressive? Could a regular scrub brush work with hot water? Maybe even boil the rock first, and after it cools brush away any leftovers?
    Knowledge is fun(damental)

    A 75 gal with eight Discus, fake plants, and a lot of wood also with sand substrate. Clean up crew is down to just two Sterba's Corys. Filters: continuous new water flow; canister w/UV, in-tank algae scrubber!! Finally, junked the nitrate removal unit from hell.

    For Fishless cycling:http://www.aquaticcommunity.com/aqua...ead.php?t=5640

  9. #9

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    Default


    0 Not allowed!
    Boiling rocks is not a great idea, some will explode. Personally I would just leave everything alone and not clean anything during cycling. Just let it go until the cycle is complete then scrub it off in tap water.
    When I go fishing I just throw sharp rocks in the water and wait for the dead fish to float to the top... Kingfisher
    Everything happens for a reason. Sometimes that reason is you are stupid and make bad decisions.

    I think my fish is adjusting well to the four gallon, He's laying on his side attempting to go to sleep on the bottom of the gravel.
    Imitation is the sincerest form of flattery.
    Dear naps, sorry I hated you so much when I was a child... Love me

  10. #10

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    Default


    0 Not allowed!
    A toothbrush works nice to clean stuff off. It gets into the small crevices.

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