Thank you for your reply. Was your tank a newly cycled tank at the time? I just bought some of this Live Rubble today to seed a new tank set up with new dry rock aqua scape. In your experience did the rubble introduce any unwanted pests or inverts?
This was on a 3+ year old tank. Maybe it's 4 years old now, I forget.
I didn't see any pests or inverts.