duanes MFK Moderators Staff member Moderator MFK Member Jun 7, 2007 21,026 26,358 2,910 Isla Taboga Panama via Milwaukee Jun 23, 2020 #11 I have used hardware store landscaping lava rock as bio-media since the mid 80s, in sumps, bio-columns. whatever. A couple bucks per sq yard. Never had a problem Reactions: jamesucla and tlindsey
I have used hardware store landscaping lava rock as bio-media since the mid 80s, in sumps, bio-columns. whatever. A couple bucks per sq yard. Never had a problem