On topic I wonder who actually straps down their tanks for earthquake loss prevention? Or just relying on insurance..I never have with small or large tanks. I want them to be able to move or slide a bit on the floor if needed..Walls tend to move a lot more than the floors during quakes normally especially higher up. If I lag bolted straps into studs securing my large tank it would probably snap, crack or pull out the stud from wall with very little movement! Small under 20 gallons or taller skinny tanks maybe beneficial ? Thankfully my tanks are on concrete slab with solid bedrock below which helps deflect movement during quakes.. knocking on wood atm anything’s possible!