D DaveW Fishaholic Joined Jul 5, 2005 Messages 494 Reaction score 0 Location Hampshire, UK Mar 8, 2006 #1 I was reading another thread which said that not all gravel is lime free. But how can you tell if it's lime free if it's not on the packet?
I was reading another thread which said that not all gravel is lime free. But how can you tell if it's lime free if it's not on the packet?
O onemisterchristian Fishaholic Joined Sep 5, 2005 Messages 531 Reaction score 5 Location California, U.S. Mar 8, 2006 #2 Pour some vinegar on it, if it bubbles, then it's not inert. So if it fizzes don't use it.
OP OP D DaveW Fishaholic Joined Jul 5, 2005 Messages 494 Reaction score 0 Location Hampshire, UK Mar 8, 2006 #3 As simply as that. Cool. Many thanks.
