P PJW AC Members Mar 12, 2003 64 0 0 62 Tampa, FL Visit site Oct 9, 2004 #1 I heard they're good for biological filtration, but I also heard they're bad for being nitrate holders. Should I keep them in my wet/dry or take them out?
I heard they're good for biological filtration, but I also heard they're bad for being nitrate holders. Should I keep them in my wet/dry or take them out?
