Live rock in a small tank? good or bad?

Discussion in 'General Discussions and Advice' started by Mr.Mandarin, 2 Jan 2013.

  1. Mr.Mandarin

    Mr.Mandarin

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    Hey wonder if someone can give me their opinion while keeping and open mind.
    I've been keeping 2 fish in my 100l tank for a while with a few corals and lots of live rock.
    I don't have a skimmer and just do regular water changes. The amount of waste i have to get rid of each week is crazy. I definitely don't overfeed and those 2 fishes can't make that big a mess. I can't help thinking that the benefit of biological filtration from the live rock doesn't compensate for the waste it creates.

    My question then: will it be better to have the minimum live rock in my tank and just keep doing lots of water changes, i.e take out the nitrates manually and have a cleaner tank?
     
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  3. dallasg

    dallasg Moderator

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    That will work, you can also use something like prodibio nano range
    But yes if you removed bits of rock over say 2-3 weeks to allow the biological filter to adjust it should be fine
     
  4. OP
    Mr.Mandarin

    Mr.Mandarin

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    thanks man, but do you think it will be better?
     
  5. RocketRooster

    RocketRooster

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    I'm no expert, but that waste can only come from one source - the food you add.
     
  6. RiaanP

    RiaanP Moderator

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    If you remove the liverock, where will your micro bristle stars and bristle worms live?

    Especially the worms do help a lot. If you do not have worms, come around, I can give you some... (well, that just sounds wrong!)

    The rock, if properly alive, is the main filtration of your system. Problem is more likely a shortage on clean up crew and over feeding.
     
    Last edited: 2 Jan 2013
  7. dallasg

    dallasg Moderator

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    How much do you have in there?

    Disagree, live rock breaks down from the bacterial activity, element exchange, wear and tear etc, just look at threads where tanks are bare-bottom and see what waste comes from live rock
     
  8. ccwilke

    ccwilke Majestic Pets Solutions Sponsor

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    In my opinion the more live rock the better its a place for bacteria to grow I call it natures natural filter.Why don't you add a skimmer it will help allot.....
     
  9. dallasg

    dallasg Moderator

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    No need for LR, I use only ceramic and dead rock and in 3 yrs never an issue, skimmer has nothing to do with biological filtration, bacteria grows everywhere, even on your finger if you left it in the tank long enough

    In a 100L tank, 5kg-15kg LR is cool and supplement with prodibio bio-digest or special blend will be tops, my boyu ran like that and with 2 fish you could get away with less
     
  10. ccwilke

    ccwilke Majestic Pets Solutions Sponsor

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    But your skimmer will get rid of all the nutrients thats excessive...
     
  11. dallasg

    dallasg Moderator

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    Your skimmer will remove DOC's, and yes will help lessen the load by removing waste before it starts, but on a small system with 2 fish it would work, think on pico's and smaller nanos
     

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