halfbloodprincess
Fish Herder
Thanks I have already done the vinegar test and they all are fine. And yes I am using sand as my substrate. I hope my tank will look good! Natural is what I am aiming at. 
hi try this it's from Mr 'the-wolf' hope it work for you nowHalfblood, my last comment wasn't aimed at you, it was aimed at platyfanatic.
Hope all goes well with the tank, would love to see some pics![]()
Hints the vinegar test my friend, if the rocks fizz, they're unsafe, if they don't fizz they're safe...