Safe rocks for aquariums
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Safe rocks for aquariums

This is a discussion on Safe rocks for aquariums within the Beginner Freshwater Aquarium forums, part of the Freshwater Fish and Aquariums category; --> What kind of rocks do you use in your aquariums?? I would like to include some rocks in mine, but don't want to spend ...

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Safe rocks for aquariums
Old 07-18-2008, 06:15 PM   #1
Safe rocks for aquariums

What kind of rocks do you use in your aquariums?? I would like to include some rocks in mine, but don't want to spend $10 or more for a rock at my lfs. Especially when I can find rocks just about anywhere! Can rocks release anything harmful even if they pass the vinegar test? Thank you.
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Old 07-18-2008, 06:52 PM   #2
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yes, even if the rock passes the vinegar test it could still release toxins. actually the vinegar test doesnt usually work... vinegar isnt strong enough. some people say that the product PHdown works better. i havent tried it myself though. you could also put the rocks in a bucket full of water. test the water as soon as you add the rocks and test it again a week later. if nothing has changed then that rock is "aquarium safe". those are the only ways of testing that i know of.

slate and shale are 2 types of rock that are great for aquariums. :D they wont release anything. just make sure you scrub them very well! DO NOT BOIL THEM. they could explode. if you want you could pour boiling water over the rocks but dont leave them in a pot of boiling water.

most rocks are fine, i just added some 2 my aquarium 2 days ago. just keep an eye on your water parameters for the first week or so and you should be ok!
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