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Old 06-03-2013, 04:37 PM   #11
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But it does break down to some extent, doesn't it? I mean, how else does it buffer?
We have a massive concentration of limestone right here in Flourtown-
Highway Materials Quarry (Old Corson Quarry), Whitemarsh Township, Montgomery Co., Pennsylvania, USA
I don't know if you recall the beginning of my build when I had the 31" tall 265 in the wall for a bit. I went to this quarry and picked up a couple hundred pounds of limestone to put under my sand bed. My reason was that I wanted to be able to reach the bottom.

When I tell you this stuff was dense.....
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Old 06-03-2013, 04:41 PM   #12
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Chemically, it's a the same stuff, right? The exposed surface area will determine the speed it can go into solution, why ground aragonite is superior to rocks for buffering. Still the safest material to use in the reef, because it belongs there.

Have you heard any issues with the quarried rock that is so popular now? I have heard tales about bad batches that had metallic minerals in them.
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Old 06-03-2013, 04:45 PM   #13
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I'm thinking it's composition is somewhat different. I want to think it's like different metals, some softer than others. Those rocks you see in my hand would be hard to break with a hammer, while calcium based live rock can easily be pulverized with the right tool.
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Old 06-03-2013, 04:47 PM   #14
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Quote:
Originally Posted by mr_X View Post
I'm thinking it's composition is somewhat different. I want to think it's like different metals, some softer than others. Those rocks you see in my hand would be hard to break with a hammer, while calcium based live rock can easily be pulverized with the right tool.
The rock in your hand has been under enormous pressure for millions of years. That alone will make it much harder than rock harvested off a rubble pile on the reef.
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Old 06-03-2013, 05:01 PM   #15
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Yes, I forgot the influence a little pressure has, but then if you put this rock in a reactor, along with something more porous, it's going to appear to break down a lot slower, and also take much longer to get your desired result, correct?
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Old 06-03-2013, 05:04 PM   #16
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Yes. It would break down much slower than a softer form would.
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Old 06-03-2013, 11:42 PM   #17
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Yep, I think I`m going to order some off Marco reef tomrrow. It seems like the best choice for now.
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Old 06-03-2013, 11:49 PM   #18
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Just curious, have a friend doing a restart and wants to go with all live rock. What's the best out there? It use to be FiJi, but that was a long time ago.
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Old 06-04-2013, 05:55 PM   #19
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I just got 100 pounds of Totoka rock, and It's giant pieces of petrified, branchy, coral skeletons. Great for placing corals, but I'm not sure about it's anaerobic bacteria capability.
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Old 06-04-2013, 09:26 PM   #20
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Cool, got any pics of it. I just ordered 25 pounds of the key Marco rock
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