Finding rocks for aquarium use

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DaisyTattoo

AC Members
Original poster
Jan 11, 2006
1,379
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Illinois
I sent my kids on a scavenger hunt for rocks to use in my aquarium. I understand I will have to do a vinegar test and clean them thoroughly.

I would love to see your tanks with rocks you’ve found for inspiration!
 

dougall

...
Mar 29, 2005
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I'd let them soak in water for a few days to see if that changes the chemistry of the water (outside of any gas off of CO2 from the water) to see if hardness or pH is affected. Sometimes vinegar isn't the most accurate of tests, maybe use a stronger acid if available.

and no pics, because all the rock is in the garage, pending the setup of a new tank, maybe one day.
 

fishorama

AC Members
Jun 28, 2006
9,350
599
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SF Bay area, CA
If the rocks look white-ish, they may be limestone & raise your GH. I would also be cautious if they were from a "landscaped" area, they might have been sprayed with weed killer or other pesticides, not so good...It doesn't mean they can't eventually be used, maybe in a "kid garden" area for a long while.
 
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