Have to aggree with the earthquake advice and even expand on it a bit. One of the other failings of the block stands is that each individual block is easy to damage and if one of the shatters you could very easilly lose the whole tank.
It wouldn't require a big quake to shatter a block stand either. I'm seen relitivly minor ones topple block stands. It's all a question of what you concider to be an acceptable level of risk.
It wouldn't require a big quake to shatter a block stand either. I'm seen relitivly minor ones topple block stands. It's all a question of what you concider to be an acceptable level of risk.
but I was gonna mention that as well 




