R Recycling Works Gambusia MFK Member Dec 20, 2005 368 1 16 Steve Irwins Shadow Jun 17, 2006 #1 135 with riverrock and shells in right now, i know shells raise ph but kids wanted them in there, am going to switch to sand, is that a good piranha substrate?
135 with riverrock and shells in right now, i know shells raise ph but kids wanted them in there, am going to switch to sand, is that a good piranha substrate?
Honda12 Fire Eel MFK Member Feb 7, 2006 4,932 3 68 37 Michigan Jun 17, 2006 #2 Shouldn't be a problem. They have sand in the amazon and that is where P's come from so yeah. Never heard of crushed shells in a P tank.
Shouldn't be a problem. They have sand in the amazon and that is where P's come from so yeah. Never heard of crushed shells in a P tank.
