Tropical Fish Keeping - Aquarium fish care and resources

Tropical Fish Keeping - Aquarium fish care and resources (http://www.tropicalfishkeeping.com/)
-   Beginner Freshwater Aquarium (http://www.tropicalfishkeeping.com/beginner-freshwater-aquarium/)
-   -   Help with these rocks?? (http://www.tropicalfishkeeping.com/beginner-freshwater-aquarium/help-these-rocks-62600/)

aaronjunited 02-13-2011 02:01 PM

Help with these rocks??
 
I have some pictures here, i collected this lot from the beach. No idea wat so ever what any of them are, hopefully someone can help.

rock 1
http://i1001.photobucket.com/albums/...d/P1220031.jpg

rock 2
http://i1001.photobucket.com/albums/...d/P1220032.jpg

rock 3
http://i1001.photobucket.com/albums/...d/P1220033.jpg

rock 4
http://i1001.photobucket.com/albums/...d/P1220034.jpg

rock 5
http://i1001.photobucket.com/albums/...d/P1220035.jpg

rock 6
http://i1001.photobucket.com/albums/...d/P1220036.jpg

rock 7
http://i1001.photobucket.com/albums/...d/P1220038.jpg

rock 8
http://i1001.photobucket.com/albums/...d/P1220039.jpg

different view of rock 8
http://i1001.photobucket.com/albums/...d/P1220040.jpg

rock 9 - looks like slate??
http://i1001.photobucket.com/albums/...d/P1220042.jpg

rock 10
http://i1001.photobucket.com/albums/...d/P1220043.jpg


Please can someone identify if these may be safe in an aquarium, and what they are.
Thanks.

Christople 02-13-2011 02:07 PM

A way to tell is to pour vinegar on the rocks and if it foams it will change your water chemistry

aaronjunited 02-13-2011 03:01 PM

Yea i will be doing that, just want to know if anyone knows what they are?


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