Is petrified wood safe?

[Incredulous_Ed]

Hey everybody

I have a piece of petrified wood and I was wondering if it's safe to put it into my coldwater freshwater fishtank.

Thanks

[William]

Yes, petrified wood is one of the safest rocks to put in your aquarium and are almost always consisting of microcrystalline quartz which is very aquarium friendly.

[Incredulous_Ed]

Awesome!

Thank you so much.

-Ed