Orthoceras fossils

[Brujx]

I'm rescaping my axolotls tanks this year and am lookig for large pieces of deco I can add. Most minerals I researched weren't safe.
I've seen that fossils are pretty much out of the question to put into tanks uness they're in slate like a lot of ammonite fossils are. I have some polished orthoceras fossils and was wondering if these would be safe or not. Attached is a photo of what i'm talking about, the back is smooth but not polished.

 

[JM29]

Hi, the Orthoceras fossil you present looks like fossils from Erfoud limestone (Morocco).
I don't think axolotls will have problems with fossils but be aware you're introducing limestone in your tank and that it could influence the pH.

 

[Brujx]

Hi, the Orthoceras fossil you present looks like fossils from Erfoud limestone (Morocco).
I don't think axolotls will have problems with fossils but be aware you're introducing limestone in your tank and that it could influence the pH.

thanks! thats mostly what i was worried about. the effects on the water and the stone/fossil itself degrading.

 

[JM29]

That said, Erfoud limestone is a very compact limestone. I don't think you'll see your fossils degradating.
What you could see is a thin cover of brown algae covering your fossils, which you won't be able to see anymore

 

[Brujx]

That said, Erfoud limestone is a very compact limestone. I don't think you'll see your fossils degradating.
What you could see is a thin cover of brown algae covering your fossils, which you won't be able to see anymore

I see, I think I'll still add a small one but monitor it for awhile. I appreciate the info!