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Tank upgrade 20 gallon to 75 gallon

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  1. stef

    stef Initiate Member

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    Hi Everyone-
    I'm posting this in the beginner forum as I'm only a year + into salt water tanks and still have very much to learn. I currently have a 20 gallon saltwater tank that has been up and running for about 1 year and 6 months.
    I have 2 small clown fish and 1 fire fish, a few snails and about 5 corals.

    The tank has been stable for a very long time and I have decided to upgrade to a 75 gallon.

    My questions are:

    When moving everything into the 75 gallon I will be unable to keep the 20 up and running. I plan to do the move in a day. I have read through research that I should buy all new sand, wash it and then add a cup or two to the new sand. To avoid hurting the tank. Is this a good idea?

    Also I will keep the old live rock and transfer it to the new tank, while purchasing a large additional amount of live rock.

    I am worried about throwing the tank into a cycle and hurting the fish and corals, any suggestions how to avoid that?

    Also I currently have a hob filter on the 20 gallon with about 25 lbs live rock. This has worked fine, I also have a small protein skimmer.
    In the 75 gallon, I will get a larger protein skimmer, but the tank is not drilled. So I am considering either 2 HOB filters or going to a canister style filter. I've read up on these and the consensus I get is both are not ideal options. But of the two, canister seems to work best? Any suggestions here? Brands?
    I don't want to add a sump since the tank is not drilled and I've read many a flood stories.

    Thanks in advance for any and all help. I'm eager to learn.
    Stefanie
     
  2. boxtop

    boxtop Member Member

    Messages:
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    Ratings:
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    Doing the same thing with freshwater. Been at it a year and wish I would have started bigger from the get go. I will follow this thread with great interest!

    Good luck to you!
     
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