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Old 10-13-2013, 07:02 PM   #1
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Adding live rock in established aquarium?

Have a 10 gallon saltwater aquarium and just wanted to know if I can add live rock to a fully cycled tank that already has fish and invertebrates? I have about 7 or 8 pounds of live rock and wanted to add about 4 more pounds. Tank is fully cycled and established. Will this case an ammonia or nitrate spike?
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Old 10-13-2013, 07:11 PM   #2
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Have a 10 gallon saltwater aquarium and just wanted to know if I can add live rock to a fully cycled tank that already has fish and invertebrates? I have about 7 or 8 pounds of live rock and wanted to add about 4 more pounds. Tank is fully cycled and established. Will this case an ammonia or nitrate spike?
It will create a mini cycle when you add it. I would just go with dry rock so you don't risk any deaths.
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Old 10-13-2013, 07:41 PM   #3
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If you have the rock already you can "cure" it in a separate tank otherwise yeah, you may have some spikes in your parameters. After a cylce is complete its best to go with dry rock, no risk of spikes.
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Old 10-13-2013, 09:30 PM   #4
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Thank you all very much. I will add some dead rock. Doesn't it take roughly 3-6 months to become a full live rock?
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Old 10-13-2013, 09:42 PM   #5
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Thank you all very much. I will add some dead rock. Doesn't it take roughly 3-6 months to become a full live rock?
It depends what your definition of live rock is. If you mean covered in coralline algae, then yes. But if you mean just spots of micro algae, and small organisms like coepods living inside, then it takes a week or so (if you already have the organisms). The effects of its surface area for filtration takes place overnight.
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Old 10-13-2013, 10:07 PM   #6
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Why the heck does it create a mini cycle??????
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Old 10-13-2013, 10:09 PM   #7
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Why the heck does it create a mini cycle??????
The die off from organisms going out of the water and changing tanks. Surprisingly some of them can die very easily, especially the good bacteria.
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Old 10-13-2013, 10:15 PM   #8
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The die off from organisms going out of the water and changing tanks. Surprisingly some of them can die very easily, especially the good bacteria.
Ahh that makes sense! How do you cure it?
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Old 10-13-2013, 10:43 PM   #9
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Ahh that makes sense! How do you cure it?
You can just put it in one of those big plastic boxes for storing (I forget what they're called...) and keep similar water as your DT and let it cure. All it needs is adequate flow, a stable temperature, and filtration. This is what I did for the LR in my nano at least. Carey, what have you done?
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Old 10-13-2013, 10:47 PM   #10
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You can just put it in one of those big plastic boxes for storing (I forget what they're called...) and keep similar water as your DT and let it cure. All it needs is adequate flow, a stable temperature, and filtration. This is what I did for the LR in my nano at least. Carey, what have you done?
Could i use this crappy topfin 30 power head? Its like 15$ at petsmart... I use it in my 20g and it seems like it gives off good flow. Do you ever have to do WC?
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