Rocks Rock. But Can You Use Them... - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 5 Old 04-16-2007, 02:35 AM Thread Starter
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Rocks Rock. But Can You Use Them...

So I am looking for a cool aquascape for my tank this summer (I am upgrading to probably a 75G) and I would really like some cool rock structures in my tank. I live near lots of mountains and there are many beautiful red and grey rocks in one particular area (they are nice and flat too, they would make a great addition to the aquarium).

The question I have is... Can I just any rock in my aquarium? I would clean it and boil it... Should I have any concerns when doing this? The aquarium is going to be african cichlids...

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post #2 of 5 Old 04-16-2007, 02:50 AM
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Things you need to look out for:
1. Calcerous rocks. They increase your pH abruptly unless you keep fish that thrive in hard, alkaline waters which in your case will be fine seeing as you wish to keep African cichlids.:)
2. Algae/moss. They'll rot unless these ones have long been used to being submerged but use bleach anyway to remove them.
3. Nasty things. There are creatures that you surely wouldn't want in your tank.
4. Metal flecks. They leach out heavy metals which can harm your fish. They are clearly visible as shiny specks gleaming on the rocks.

Just boil them to be sure you got rid of unwanted pests and other factors.

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post #3 of 5 Old 04-16-2007, 10:09 AM
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I think you#ll find this usefull.
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post #4 of 5 Old 04-16-2007, 10:59 AM
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Nice link Wolf. I would like to add something that can be very important. Do NOT boil a rock quickly or at all if you think it saturated with water. The rocks can explode very violently and cause severe damage to you and the surrounding area.

I do not know how to properly boil most rocks but I would error on the side of caution and maybe just pour boiling water over them instead of actually boiling them. This way if they are saturated with water they don't get hot enough for the water to turn to steam and explode.

I actually know someone that boiled rocks they got out of a river bed and the rocks destroyed the windows in their kitchen and broke dishes, glasses and cupboard doors. Thankfully no one was in the kitchen when it happened.
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post #5 of 5 Old 04-16-2007, 11:35 AM Thread Starter
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WOW! Thanks for the caution, info, and the great link! I will definitely have one of the people from out geology department identify the rocks I collect for me! THANKS!

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