I'm going to be upgrading from a 2 year old 90 gallon system to a new 170 gallon system that will be going in the exact same spot. I'm planning on transfering all livestock & rock immediately to the new tank (I'm completely replacing the sand with new).
Is this safe or do I need to figure out a way to let the new system cycle?
Is this safe or do I need to figure out a way to let the new system cycle?