Good and bad rocks

[yhbae]

Originally posted by Robv1965
I just put 2 drops from bottle #1 onto a piece of fieldstone.

No fizz at all. I'm assuming that it would fizz right away?

Oh yeah it should fizz right away, even with one drop... That rock should be safe...

 

[ScottoMacD]

Pagoda? - no clue?

Pangoda is inert and can be used. I use it in all of my new world cichlid tanks.


I have never had any luck with the vinegar test. I dunno maybe its just because I'm half deaf. Too many Iron Maiden concerts in my youth.