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Hello,Thinking of using your AF rock on a new build. Is there any issue with using this on a no water change system? I've had some other synthetic brands leach aluminum so just want to make sure there's no issues with aluminum or any other substances in a no-water change environment. Thanks

Hello,
Thank you for your question.
Our Rock is totally safe. We check it many times in our laboratory using ICP-OES and chromatograph to check it.
There is no aluminium or other toxic substances.
@CoralVue Can you please help?

