Tropical Fish Keeping - Aquarium fish care and resources

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-   -   Rocks inside my aquarium?? (http://www.tropicalfishkeeping.com/beginner-freshwater-aquarium/rocks-inside-my-aquarium-7342/)

dee105 08-05-2007 06:02 PM

Rocks inside my aquarium??
 
My landlord is getting rid of a ton of rock.. I don't know what kind of rock it is, is there a certain test i can do to insure that the rock isn't going to harm my water? I heard something about putting vinegar on the rock to see if there is calcium in it... any feedback would be so appreciated.

blueblue48 08-05-2007 07:32 PM

i dont really know about the vinegar thing, but what i do is boil it and that gets rid of all the bacteria and then i let it cool off and place it in my aquarium

JouteiMike 08-05-2007 09:29 PM

Just a few drops of vinegar on the rocks, and see if it foams. If it foams, then don't put it in your aquarium, it will alter your pH and water hardness. Another test is to fill a bucket with water and test the pH, phosphates, nitrites, and hardness if you have those test kits. Then put the rocks in the water and retest, to see if there's any change.

Even if the test is good, I would still boil the rocks.

Mr.Todd 08-07-2007 10:48 PM

Better yet post a picture and we might be able to help. You want to try and stay away from any metallic rock as well...

This is also a great guide:
http://www.fishipedia.org/index.php?title=Rocks

I have heard that any "rust" on the rocks is a bad thing but I have also done some research into the whole rocks thing that says that most oxidation (rust) is not in a form that the metals can be taken up by the fish...

To tell you the truth, I put a ton of the rock I collected into a tank with some feeder guppies for a few weeks and they where totally cool with it... I also put the rocks into some distilled water with a bubbler and measured the pH every couple days for two weeks or so. Once I was convinced they where Ok I put them in...

Remember the fish's motto.
Better safe than dead.

fish_4_all 08-08-2007 12:31 AM

Ok, one quick warning on boiling rocks of any kind. If the rock is pourous and has water inside it the water can vaporize at the boilng point and the rock can explode with lethal force! I have seen the results of this one police reports with pictures of kitchens destroyed by it.

Don't boil a rock unless you know it is not pourous!

Alcohol, bleech, or boiling water poored over them are plenty enough to kill the bacteria and any other thing that might harm the tank or the fish. Put them in a bucket and pour vinegar over them and give it some time to see if it reacts. Sometimes rocks can have a film on them that will dissolve after time and then you will see the bubbles coming from the rocks where you might not right away.

If you use bleech make sure to rinse it very well and treat it will dechlor or leave it in the sun for a day to get rid of the chlorine.

Falina 08-08-2007 03:03 PM

Quote:

Originally Posted by fish_4_all
Ok, one quick warning on boiling rocks of any kind. If the rock is pourous and has water inside it the water can vaporize at the boilng point and the rock can explode with lethal force! I have seen the results of this one police reports with pictures of kitchens destroyed by it.

Don't boil a rock unless you know it is not pourous!

Alcohol, bleech, or boiling water poored over them are plenty enough to kill the bacteria and any other thing that might harm the tank or the fish. Put them in a bucket and pour vinegar over them and give it some time to see if it reacts. Sometimes rocks can have a film on them that will dissolve after time and then you will see the bubbles coming from the rocks where you might not right away.

If you use bleech make sure to rinse it very well and treat it will dechlor or leave it in the sun for a day to get rid of the chlorine.

You beat me to it!

Don't boil a rock - you could end up with smashed windows if you're lucky, a smashed head if you're not!

The-Wolf 08-09-2007 02:04 PM

fish_4_all & julie you have scared me sufficiently to amend my article on fishpedia. it now reads
'Also you should pour boiling water over your rocks or wherever possible immerse them in boiling water to clean them and to kill any unwanted bacteria that may be living on it. Do not boil or roast in an oven and never use a microwave to heat up rocks'

I hadn't considered how wrongly the original advice could've be used
and I thank you both for showing me my error.

fish_4_all 08-09-2007 02:54 PM

In all actuality the best thing to use would be good old solar radiation. The sun should kill almost everything and then a splash of boiling water or alcohol should kill the rest if it would even be needed.

I found somethig that expllains it a little better but I lost the link again. It has to do with a rocks ability to store and collect heat energy. A lot of rocks can get 2-3 times hotter than the heat source you are using. This causes the rock to reach the flash point of water and when it does it either cracks or explodes. I would guess that smaller rocks are probably the safest to boil because they will not heat form the outside in so bad. But a big rock with enough surface area could just be the last rock you boil.


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