I don’t think twice about ripping a tank apart. I do it all the time.
When I am really redoing a tank, as I’m doing ATM with an acrylic tank that was badly scratched and needed a better buff than the sandpaper/magnet cleaner could provide, my system is as follows:
- pump 80-85% tank water into bins
- place livestock in bins w/some sort of filtration
- remove rock, flush it out in remaining water to blow out detritus, place rock in one of the bins
Now I’m left with sand bed and 10-15% tank water. I then:
- pick through sand to remove old shells, etc
- push/stir through the entire sand bed to turn it over, releasing detritus
- after doing this, push all sand to one corner of the tank
- pump out the remaining water/detritus, etc
- sand goes into a bucket(s)
Once the tank is ready to go back together, I do the normal set-up stuff. Once the water is added back to the tank, I finish off by siphoning our whatever detritus has settled back onto the sandbed.
It’s a fountain of youth move. For most clients, I do something like that every 2 years, whether the tank needs some additional work done to it or not.
As long as you are careful with your corals, they don’t seem to mind being moved around at all. But once you set it back up, they tend to take off noticably. And the tank just looks better, for a long time.
Now, if you have a gigantic wall of SPS that can’t be moved, maybe don’t rip it apart. But for other tanks, even with huge colonies, it pays off.
Hurricanes happen in nature. Not sure why we’re afraid to let a storm go through the tank every once in a while.