Rocks okay? - Tropical Fish Keeping - Aquarium fish care and resources

 
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post #1 of 3 Old 12-10-2007, 12:07 AM Thread Starter
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Rocks okay?

I found a bunch of nice stackable rocks today when I went to cut down my Christmas tree.........
heres a couple of pics........they seem to have some kind of "silver" material in them........







Do you think they are safe for my aquarium?

Thanks......
Robb

Robb
75G Mbuna
20G Tropical-Barbs/Tetras
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Near Future-20G Shellie-"Multies"
2 dogs, 1 cat
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post #2 of 3 Old 12-10-2007, 01:31 AM
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the rocks the 'sparkle' probably have an ore of some kind in them,
this could be dangerous and should therefore be avoided.

the rest looks like a mix of shale, sandstone and granite but I'd nedd pics of each one to be certain.

you can do a quick test to see if any a calciferous (which also shouldn't be used). poor a small amount of white vinegar on the rock, if it fizzes then it is calciferous.

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post #3 of 3 Old 12-10-2007, 01:32 AM
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I wouldn't just throw in some rocks if I found them. They could leech undesirables into the tank.

Tanks: 40 gal FW setup, 10 gal Reef tank.

Old BC8 setup: http://www.fishforum.com/viewtopic.php?t=10744
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