Iding A Rock For My Aquarium

grump299

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good evening I’m sure I have but this in the wrong forum but I can’t find the right place. So if you need to move it to the right place thank you.

I have found a rock I would like to put in my tank put I don’t know what kind it is and if f it s safe to the water and fish. So can someone tell me what it is or if there is a way to test it to see if it will hurt my tank or fish.
 

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fjh

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No idea what type of rock that it... perhaps granite?

To test it, put a few drops of vinagre on it and see what happens. If nothing happens, then its probably safe. Since its small enough, i would boil it first though just to make sure you kill everything (doesnt look porous to me but you never know)
 

sloughdog

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I’m guessing granite too or similar hard rock. You could:
A) use vinegar test- if it fizzes it’s not safe
B) putwater in a bucket and test the water. Place rock in bucket of water and test water again in couple weeks to see if any changes in water parameters.
C)nitrate from test kit -same as vinegar test.
 
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grump299

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Ok so update I but some vinegar on the rock today and nothing it ran down the rock like water no fizz. Now I should boil it to kill anything that could be on it but I’m not sure how long to boil it for can anyone tell me what should be good.
 

sloughdog

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I wouldn’t recommend boiling the rock as it can explode. All it takes is an air pocket inside the rock, that air expands and boom the rock explodes (think of it like a rock in a camp fire that pops/explodes). I would just pour boiling water over it.
 
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grump299

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Thx for the reminder about that I forgot about that should have known that lol.
 

Ms rose

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sloughdog said:
I’m guessing granite too or similar hard rock. You could:
A) use vinegar test- if it fizzes it’s not safe
B) putwater in a bucket and test the water. Place rock in bucket of water and test water again in couple weeks to see if any changes in water parameters.
C)nitrate from test kit -same as vinegar test.
so are you saying thats the 2 nitrAte test bottles will cause a reacion to rock like vinigar does? thats a great fact if so! is it both test #1 and #2?
 

Dch48

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Ms rose said:
so are you saying thats the 2 nitrAte test bottles will cause a reacion to rock like vinigar does? thats a great fact if so! is it both test #1 and #2?
Probably #1 since it says it's corrosive to metal.
 
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