Quote:
Originally Posted by Aquattro
You don't NEED a deep sand bed, so if you want to remove it, take it out. It will contain bacteria that has been processing waste, so you may need to do an extra water change. But leaving it out is fine. If you add a new one, it would probably take 2 months at least to fully mature, and then you're moving it again.
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this is in deed the thing, puting new in, and then having to take it out again.
rinsing the existing and putting it back, might also post som risk.
when removing it, I can isolate the tank and take it all out, no mix with the tank