Locally collected rock question - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 11-17-2011, 09:30 PM Thread Starter
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Locally collected rock question

I have recently collected a bunch of rocks from local creeks.
Some of then have what looks to be iron streaks, would this hurt my planted tank or my goldfish or cory?

I just want to be sure!
Thanks!
Jasmine
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post #2 of 5 (permalink) Old 11-27-2011, 10:56 PM
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I'm not sure. Probably not, assuming there are only a few rocks and they are not changing the color of the water. I'm just guessing.


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post #3 of 5 (permalink) Old 11-27-2011, 11:00 PM
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They shouldn't cause any problems. You'll want to make sure that they are very clean, especially if they were collected from near a roadway, but a few iron streaks won't cause problems. A bigger concern is if they contain chemicals that will change your pH. You can test that out by adding a few drops of the strongest acid you can get your hands on (or submerge them in vinegar for a night otherwise) and see if they bubble.
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post #4 of 5 (permalink) Old 11-27-2011, 11:02 PM
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A bit of iron won't cause any problem, but a lot of iron will discolour your water.

Be sure there isn't any mica (fool's gold) in the rocks. That can be problematic. So, look for rocks that don't have noticeable mineral type deposits.
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post #5 of 5 (permalink) Old 11-29-2011, 03:11 AM Thread Starter
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Hey all, i posted this in the aquascaping area too, heres the link, i posted a pic in there so you can see what we are talking about!

https://www.plantedtank.net/forums/aq...-question.html
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