Are these rocks safe?

[CCSmith891]

Can anyone tell me if any of these rocks are limestone or any other kind of rock that would raise my ph? Any help is appreciated, thanks.


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[Montelboom]

The best way to test is if you pour vinegar on it and if it fizzes up it would be a rock that can raise your ph.

 

[CCSmith891]

The best way to test is if you pour vinegar on it and if it fizzes up it would be a rock that can raise your ph.

Thanks for the tip. I will try that.


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[Montelboom]

No problem

 

[Evz jardini]

The best way to test is if you pour vinegar on it and if it fizzes up it would be a rock that can raise your ph.

Good advice :thumbup:

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