Tropical Fish Keeping - Aquarium fish care and resources

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- - Rocks okay? (http://www.tropicalfishkeeping.com/freshwater-aquarium/rocks-okay-9890/)

TrashmanNYC

12-10-2007 12:07 AM

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........
http://img107.imageshack.us/img107/1909/img0747cl3.jpg
http://img155.imageshack.us/img155/2796/img0748jo9.jpg
http://img155.imageshack.us/img155/7118/img0751es9.jpg
http://img107.imageshack.us/img107/8408/img0750pj8.jpg
http://img206.imageshack.us/img206/2871/img0752jg4.jpg
http://img107.imageshack.us/img107/9759/img0753oi2.jpg

Do you think they are safe for my aquarium?

Thanks......
Robb

The-Wolf

12-10-2007 01:31 AM

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.

MattD

12-10-2007 01:32 AM

I wouldn't just throw in some rocks if I found them. They could leech undesirables into the tank.

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