Planted Tank Enthusiast
Join Date: Apr 2013
Location: Honolulu, Hawaii, USA
You can collect some lava rocks from state lands, you'll need a permit. Call DLNR, Divison of Forestry and Wildlife and get the permit (I think it's free) they should be able provide some suggest some places where can collect. (808) 973-9778
Father of the Princess Zelda.