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  1. #1
    Senior Member thien's Avatar
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    bacteria on live rock

    I'm curious about the bacteria levels on the live rock. Let's just say my rocks are cured and the tank is cycled. If I don't add any livestock to the tank for the next month or two, will I "starve" the bacteria and kill the live rock?

    BTW, it's now 2 weeks for my live rock. Still the same level of ammonia (0.1-0.2), registering a little nitrite (0.1). If there is no other die off happening, does this mean that my levels of good bacteria won't build up to a higher level? does that make any sense?

    thanks.
    thien

  2. #2
    Senior Member tang_man_montreal's Avatar
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    You still have to "feed" the liverock.
    Basically throw in a small pinch of flake food every couple of days.

    Regarding your cycle... have you seen an increase in your nitrates?
    I am Homer of BORG... Prepare to be..OOOO!! DONUT!!!!!!

  3. #3
    Senior Member thien's Avatar
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    thanks.
    Yes, I registered a little nitrate (o.1). I'm getting some new test kits (sea-Test) this weekend to see if my Hagen is junk.

    Couple of questions:
    How do I know if my rocks are dead?
    If my rocks were somewhat cured (hence no spikes), does that mean that my tank won't be able to cycle and develop a reasonable amount of good bacteria?

    thanks.
    thanks.
    thien

  4. #4
    Senior Member ALRHA's Avatar
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    the bacteria will develope no matter what (as long as there is "food" for them). just feed the tank a drop and they will multiply to the required levels to break it all down to nitrates.
    Albert
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  5. #5
    Senior Member tang_man_montreal's Avatar
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    Hmm...
    I'm gonna have to answer your questions with a few of my own...
    How did you cycle the tank? Did you use "cured" rock only, or did you try the "cocktail shrimp method"?

    Either way, I would let the tank cycle until you have 0 ammo and 0 nitrites. This will be an indication that the cycle has completed. Once the cycle has completed, you'll most probably be measuring some nitrates. At this time, you can do a 5-10% waterchange, and start with your first small fish.
    I am Homer of BORG... Prepare to be..OOOO!! DONUT!!!!!!

  6. #6
    Senior Member thien's Avatar
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    No shrimps.
    I put in about 60pounds of what was called "semi-cured". The distibutor told me he had these rocks curing in his vats for 2 weeks. I had these in wet newspaper for 30 hrs. Put them in a fresh tank, skimmer running (was getting some brownish stuff, but pretty clear now), powerheads, and a marineglo (the blue one) for 4-5 hrs a day. It was 2 weeks Sunday and my ammonia has been the same (0.1-0.3) the whole 2 weeks. That's it. Haven't added anything else. Water is crystal clear. There's wavey stuff on the rocks that seems to have turned whitish, greyish. I did scrape off some of the black spongy stuff. There's also these purple nubs on the rocks. I knock some off but there's still some on the rocks. They're about maybe 3-4mm high. No idea what they are.

    Anyways, I'm perfectly willing to wait this out. I was just concerned that I might have 60pounds of paper weight sitting in the tank doing nothing.
    thanks.
    thien

  7. #7
    Senior Member ALRHA's Avatar
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    the bacteria will grow on them with time. they are still adding to your surface area.
    Albert
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  8. #8
    Senior Member tang_man_montreal's Avatar
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    thien,

    The purple nubs.... if they're what I think they are, they're good to have.
    Their name escapes me right now, I'll try to find a pic and proper ID for you.
    I am Homer of BORG... Prepare to be..OOOO!! DONUT!!!!!!

  9. #9
    Senior Member tang_man_montreal's Avatar
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    Found it!

    Foraminiferans, also known as Forams

    I am Homer of BORG... Prepare to be..OOOO!! DONUT!!!!!!

  10. #10
    Senior Member thien's Avatar
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    hmmmm....it doesn't look like what I have. I'll have to take a picture tonight and I'll post back tomorrow. thanks.
    thanks.
    thien

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