Jinx!To test if they will alter the ph pour a little vinegar on it. If it fizzes it will but if it stays the same it wont
He said from an aquascaping place for koiThere are several ways to check...
First off, we’re did you buy them?
Secondly, if you pour vinegar on it, does it bubble? If so, it is not safe. That is just and easy way to test. But I really need to know where you got them.
YesI only have white wine vinegar will this get the job done?
I don’t suggest it...As far as gluing some plants to the rocks, will gorilla glue work?