Thanks. I didn’t realize that they did that. Frankly, if there is a 10% chance of a tank crash, I likely won’t do it. I may wind up doing it to a different tank, my family would shoot me if I mucked up that tank. I really regret not changing the sand when I had it apart.Ok. Up to you, but I think sand is better myself. Can always replace it with new, too. BRS removed the sand on the 160, I think? And it pretty much crashed the tank because they did it all at once. Not to say it will happen to you, but here is a thread. They also did a video on youtube.
Thread 'The BRS 160 Sand Removal - What were the negatives from the destabilizing event?' https://www.reef2reef.com/threads/t...egatives-from-the-destabilizing-event.784254/