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Old 11-25-2014, 12:19 PM   #1
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Curing dried rock

Hi guys and girls. I recently got 130lbs of dried rock. I am curing it in my sump and 2 buckets. I have never cured rock before only read about it. I just wanted to double check on what I needed to do.

All the rock is exposed to high flow by many power heads. I have heaters that are keeping the temperature at 25 degrees C. The salinity is 1.024 and was filed with RO water. It is in the dark all the time. I know that in a week I'll have to do a 50% water change.

I wanted to ask what now? Do I just leave it there for a month or two? Or do I have to add something to the rock? Or do I just do what I'm doing and then a month later I have fully cured live rock? Thanks for responses.


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Old 11-25-2014, 02:49 PM   #2
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You should add some bacteria to it or a piece of rock that is already cured. That will aid in the curing time.


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Old 11-25-2014, 04:14 PM   #3
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Yes, seeding it will greatly speed up the process.
I'm also curing or more accurately seeding some rock for a new setup. I added some ammonia, accidentally a bit high ~7ppm, and then a few hours later added the contents of a 7 month old in-tank refugium I will no longer use in the new tank; ~1.5lbs mud and ~1lb oolite sand, plus bits of rock and coral chunks.
I also added a couple capfuls of Bactiv8 NPX bottled bacteria.
That was late yesterday afternoon, an hour ago I tested the water and the nitrites were about 5ppm, and 0 yesterday, so seeding definitely made a big difference.
I figure the new rock and bio-media in there will be rather well seeded in another week.
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Old 11-26-2014, 03:09 AM   #4
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Thanks, is there any names of good bio media so I know what to get?


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Old 11-26-2014, 11:15 AM   #5
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This is what I plan on using when I seed my dry rock. I read a lot of great reviews about it.
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Old 11-26-2014, 11:28 AM   #6
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Thanks, is there any names of good bio media so I know what to get?


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The bio-media I have been using is Seachem's Matrix. It is very porous and provides tons on external and internal surface area for bacteria to colonize.

The bottled bacteria is from Two Little Fishes;

Two Little Fishes Bactiv8 NPX Biological Filtration
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Old 11-26-2014, 11:34 AM   #7
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Sorry, I misunderstood the question.



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Old 11-26-2014, 11:41 AM   #8
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So will Bio-Spira and adding a bit of live rock shorten the curing time of the dried rock?


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Old 11-26-2014, 12:12 PM   #9
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So will Bio-Spira and adding a bit of live rock shorten the curing time of the dried rock?


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definitely
probably by at least a week.


if the rock was completely dry with no bits on it to decay, then all you need is for it to get seeded with bacteria. Add a few pounds of rock that is already in use and "live", the bottled bacteria and a food source (ammonia) and it should be good in a week or two at most.
If the rock has stuff that needs to decay off first, still add the live rock and bacteria, but also begin testing to monitor any decaying stuff on the rock, and it will take longer.
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Old 11-26-2014, 12:35 PM   #10
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You need an ammonia source. Bacteria will grow on it's own. You can add the bottled stuff if you like, but it's not necessary. BTW, you do not need to do a water change in a week. Let the cycle run it's course, and when you see no detectable ammonia or nitrite, and the nitrates are high, then you can do your water change.
I would be testing the water periodically and not counting days.
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