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Old 10-12-2009, 01:37 PM   #1
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Lava Rock Questions :)

i have this company that sells lava rocks near my house and i was looking around and they have this rock that looks almost as close as Live Rocks. its called a Normax Lava Rock and i was wondering if safe to use this rock on a tank?. i will be curing it also during my cycle with maybe 15lbs of live rocks for my 30Gallon.
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Old 10-13-2009, 06:39 PM   #2
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I`ve never used it but I`ve heard others say it`s not good to use. Dont know why. Maybe others could expound on that.
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Old 10-13-2009, 07:09 PM   #3
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Its not calcium based, try looking for lime rocks. Most lime is ancient coral reefs. It works as a base (lime). The lava rock you have is full of things like copper and Iron which those 2 elements in a reef tank will lead to a nasty crash, most inverts cant handle any amount of copper in your water, and iron will cause crazy algea blooms.
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Old 10-13-2009, 07:16 PM   #4
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yes, the lava rock contains minerals that are a big no no in SW tanks. i learned that one the hard way...
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Old 10-14-2009, 12:19 AM   #5
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thank you, im sorta sad.. this rock looks so nice lol
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Old 10-14-2009, 02:09 AM   #6
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Look at the reddish color of some of those lava rocks in your picture. That's rust from the iron in the lava rock.
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Old 10-14-2009, 12:55 PM   #7
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lol and i dont think we even have to explaiin the hazard of RUST in an aquarium...

but besides that, you can get base rock for like 1-3 dollars a pound. and if you go onto craigslist, there are all kinds of people willing to sell live rock for very cheap too.
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