Question: Safe Commercially Named Rocks

[eglochk]

Long story short, snails + impulsiveness = building a new tank. As this tank is larger than what I had before, there is a desire to do some low key aquascaping for an axolotl. Plants are sorted but rocks are desired.

It's known that many rocks will pose a hazard to the water chemistry (the Aquascape page), but the difficulty comes up with identifying rocks that have commercial names. For example, dragonstone or pagoda stone. If recalled correctly pagoda stone isn't safe. But for the life of me, I'm having difficulty identifying dragonstone.

It would be appreciated if you could help identify the below rocks, and advise as to their safety: dragon, snail, and seiryu

(My apologies if this is already on the forums, but I was unable to find it.)

 

[Luca1980]

I have heard of dragon and seiryu rocks as they are commonly used in aquascaped tanks - never heard of snail rocks though. I have pagoda rocks in my planted 4 foot fish tanks and it has not altered water chemistry at all.

 

[eglochk]

- never heard of snail rocks though.

Based on the photo received from a supplier, they are a fossil. What they are in is unknown as is what they originally were. (See attached.)

I have pagoda rocks in my planted 4 foot fish tanks and it has not altered water chemistry at all.

What is keeping them from changing the water chemistry? The reason I ask is other forums have record of individuals having a positive result when testing with muriatic acid.

 

[Axielovr_3333333]

hmmmmmmmmmmmmmmmmmmm. someone once told me only fossils in slate are safe i may be wrong.