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Can I Use ( Dead )Live Rock In A Fresh Water Tank?

Discussion in 'Tropical Discussion' started by plecostomus-mad, Feb 25, 2010.

  1. plecostomus-mad

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    would there be an issue if i used dead live rock in my tropical fresh water setup?

    should i have posted this in the marine section? i wasent too sure where to post it.

    mark

    EDIT: i know the rock will die BUT, the fresh water bacteria will grow on the rock and thus become live rock again? its the same principle no? :nod: i will still use a filter, i wouldn't depend on the bacteria alone if and when it develops on the rock.

     
  2. fatheadminnow

    fatheadminnow Member

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    The bacteria in a freshwater tank, at least 99% of them, will colonize in the filter, not on decor or the substrate. The remaining 1% or so will colonize elsewhere in the tank.

    If the LR is coral, than that is going to raise your pH.

    -FHM
     
  3. plecostomus-mad

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    hi fatheadminnow :)

    i know the deal with bacteria colonizing the filter etc :fun:

    is there any live rock that is not coral? and do people sell off there now dead rock cheap? ive seen the prices of live coral/rock and was shocked!

    mark
     
  4. ellena

    ellena Member

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    Why do you want to? Do you want rocks and have some live rock knocking about? Or do you think it will hold bacteria and so be more beneficial than regular rock?
     
  5. fatheadminnow

    fatheadminnow Member

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    :lol: I should of known, *dang it FHM, should of looked at the members name.* lol

    Not sure about the LR not being coral. I would just get real rock(not coral) and put it into your tank.

    -FHM
     
  6. plecostomus-mad

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    i want the look of a marine tank but with a freshwater river twist. i think it will hold a little bacteria, like the substrate BUT i also know the filter is the main home :good:

    having a piece of '' normal '' rock is just a bit mundane and i want to try something different. i also want a partially planted tank,the plants coming out of the rock would look stunning. i also want to make holes in it so my plecos have a good choice of hiding spots, breeding caves etc.im ordering a 60 x 24 x 24 tank in 10mm glass for £204 + £55 for delivery from ac aquatics :D :drool: for this new project.
     
  7. Truck

    Truck UKAPS

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    You could get plain ocean rock, but it will raise your PH, the live rock is the same stuff, except it has algeas growing on it.
     
  8. plecostomus-mad

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    :lol: thats ok buddy,its been a while since i needed your advice, i have
    learned a lot since my beginner days :nod:

    hmm.... any idea how much it would raise it? i may have to make my own fake rock if its too much. i sopose the bonus of making my own '' using a special cement for aquariums '' is that it will weigh alot less.
     
  9. Truck

    Truck UKAPS

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    will raise it to about 8-8.4
     
  10. plecostomus-mad

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    thats too high. 7.9 would be absolute max i think for my plecos.
     
  11. raptorrex

    raptorrex Inactive

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    man, if there is good water flow, bacteria will colonise anywhere. thats how bubble filters work.
    whilst the ocean rock will not become "live" again. its quite capable of holding bacteria that will assist your filtration. its, undoubtedly true, virtually no bacterea inhabit the water itself. and very little is on the tank (sides) and deccor. bacteria can, and does inhabit the substrate. how much, depends on how you have kept your tank.
     
  12. fatheadminnow

    fatheadminnow Member

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    The bacteria will colonize every, but they are going to colonize in higher numbers in certain places; which is more likely the filter. I have a bubble filter on one of my tanks(I am assuming you are referring to a sponge filer), and still the bacteria, at least 99% of them, will colonize there and the remaining colonize on the substrate, decor, glass and everywhere else. Plus, since the bubble filter is going to provide a smaller turnover rate, this means there is going to be an increase in the bacterias population to handle the bio-load. Lets say you have a number 10 flow rating in your filter and a number 9 flow rating in your tank. The bacteria are going to eventually choose the filter because it has a greater benefit for them, even it is just a little bit higher of a flow rate. A good flowing tank will bring ammonia to the filter, however the bacteria will colonize in a place in the tank that has the highest flow rate. The more dominant bacteria in the filter, since they are getting a higher water flow, will eventually wipe out other bacteria colonizing in other parts of the tank by depriving them of a food source.

    -FHM
     

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