Hi Thanks for your reply eaglesaquarium.
I saw bubbles when i put vinegar in but mainly where there were small crack it could be just vinegar going in and making bubbles. I saw the vinegar reaction with the rock it wasn't same rocks i have.
Pet shops don't really sell rocks here,
Hi
I am Ankush i am fairly new to this hobby.
I found this stones can anyone tell me if they are safe to use or not.
I would be keeping cichlids in my tank and i have done vinegar test on the rocks saw some fizzing but it was really no that much,
https://postimg.org/image/cwhsik0pt/...