Oct 7, 2011 #1 Jawaits Aquarium Advice Activist Joined Sep 20, 2011 Messages 108 CAn I use igneous rock like scoria (aka lava rock) pumice or basalt as my base/dead rock?
Oct 7, 2011 #2 ccCapt SW 20 & Over Club Joined Mar 15, 2004 Messages 5,365 Location Northeast PA Unless you know where it came from and know for sure it won't leech out any heavy metals, I wouldn't use it.
Unless you know where it came from and know for sure it won't leech out any heavy metals, I wouldn't use it.