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  1. #1

    Default How to switch out substrate?

    0 Not allowed!
    I have white sand and I want to switch to black sand. Sucking all of the sand out and putting the new stuff in won't be a problem, but all of the bacteria in the old white sand will be gone, will this cause my tank to do a mini cycle when I put in the black sand with no bacteria? Also I can't mix then as they are two different colors and I want a relatively uniform color.

  2. #2

    Join Date
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    methuen ma usa

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    0 Not allowed!
    well you can always add some of the old sand to a pantyhose... but the cycle should be minimal... when i switched out my sands i didnt notice much of a cycle. as long as your filters are up to par or above par and they have a strong bb
    I wonder if i plant one of my tiger barbs would the demon seed grow to a full tree?
    gotta love them bunnies!
    I.R.S.: We've got what it takes to take what you've got!

  3. #3


    0 Not allowed!
    I have an Eheim 2075(they say up to 160 gallons) and I do 50% every week. Should that be enough? This is on a 55 gallon tank.
    Last edited by ><))>WBW<((><; 04-20-2013 at 05:30 AM.

  4. #4


    0 Not allowed!
    Quote Originally Posted by ><))>WBW<((>< View Post
    I have an Eheim 2075(they say up to 160 gallons) and I do 50% every week. Should that be enough? This is on a 55 gallon tank.
    I think you will be just fine. You have a seeded filter with bacteria already established. After changing out the substrate watch your water parameters for a few days just in case.

  5. #5


    0 Not allowed!
    Here's a thread on switching substrate:

    Hey... where in WI are you?

  6. #6


    0 Not allowed!
    Glendale, how bout you?

  7. #7


    0 Not allowed!
    Union Grove.

    Hope you get the sand switched out ok! I've read it's not that hard, and most of the BB lives in the filter... Like rodm81 said just keep a close watch on the parameters for a while...

  8. #8


    0 Not allowed!
    In the link SomethingIsFishy posted it said to remove your fish and drop the water level way down, is it possible to leave the fish in the tank and leave the water level higher, or will the water be to murky for the fish.

  9. #9


    0 Not allowed!
    Disclaimer: I have not done this.

    I would think that trying to add sand to an aquarium that's full or nearly full would be a nightmare. If I was doing this I would remove the fish and drop the water level as far as possible, change sand out, then refill tank pouring water onto a plate set on the sand to keep from stirring it up...

    Just my opinion...

  10. #10


    0 Not allowed!
    Yeah defiantly not full! My dad would not be happy as to why there was water all over my floor! I was thinking more of when I do my weekly water change sucking up the sand, then adding in the new stuff, when the tank is only half full.

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