Tan tuff rock properties - The Planted Tank Forum
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post #1 of 5 (permalink) Old 07-04-2013, 06:35 AM Thread Starter
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Tan tuff rock properties

I am having trouble finding information on tan tuff rock. Is this neutral, lower, or raise ph? Is this safe for aquariums?

It is igneous - meaning it comes from fire or lava

Anyone use this fine rock?
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post #2 of 5 (permalink) Old 07-04-2013, 10:40 PM
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I do not recognize it specifically, but it sort of looks like a type of basalt that is used locally in the landscape.
Generally igneous rock is aquarium safe. The high temperature of its formation locks all the minerals in so they do not come out in the water.

You can sure test it, of course.

Put some in a jar of water and test right away, then every few days for a week or two.
GH, KH, pH, TDS will be the most telling. If you have other tests like iron or phosphate that could help.
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post #3 of 5 (permalink) Old 07-04-2013, 10:55 PM
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Seeing as you're also from MN, where'd you get it? It looks like regular limestone or sandstone. Sandstone might dissolve, and limestone changes parameters. Happy fourth, and good luck!

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post #4 of 5 (permalink) Old 07-06-2013, 02:28 AM
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I'm pretty sure tuff is just consolidated volcanic ash - it's sorta neat, cause even though it's igneous, it can also be considered sedimentary

I would think it's okay, but I can't be sure, with the smaller particle size, their may be some stuff that can leech out that wouldn't happen in a solid block of stone. Also, I think the roman version of concrete was made from volcanic ash, so I imagine some stuff wouldn't be safe...

but what Diana said should work for that kind of issue.
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post #5 of 5 (permalink) Old 08-15-2014, 11:35 PM
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hello, i was wondering if you have any idea about this kind of stone?
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they were inside similar rock
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