safe rock - The Planted Tank Forum
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post #1 of 4 (permalink) Old 01-29-2009, 01:00 PM Thread Starter
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safe rock

hello all
Im looking to see if anyone has a list of aquarium safe rocks that wont chance my water chemistry. Im not fond of going to a pet store so im off to the local landscaping yard to see what they have. Rocks like fieldstone, granite ect. any help would be greately appreciated.
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post #2 of 4 (permalink) Old 01-29-2009, 04:20 PM
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here is a basic list if you want more detail just ask. I will not list any granites of meta's because there locality can have a huge bearing on there composition any ways here it is

Sand stone
shales (may become soft depending on age and layering

remember this is just a basic list for any body with a limited understanding about rock composition the rocks listed above are not 100% safe no rock is.

a good method to be a sure about its basic composition is to carry a bottle of 1molar HCL if it fizzes it is leverite (leave it right there) . or find a geologist i hear they will work for shiny rocks and plants

hope this helps
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post #3 of 4 (permalink) Old 01-30-2009, 04:51 PM Thread Starter
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that helps alot. is there a product name or where would i obtain "1molar HCL "?
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post #4 of 4 (permalink) Old 01-30-2009, 05:48 PM
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You can use muriatic acid which is dilute HCl. You can get it at masonry shops, pool supply shops, Lowe's, Home Depot, etc.

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