I've been following the other upsizing thread and just want to make sure I have understood correctly as I am moving all 7 of my tanks from basement to main floor and upsizing a few of the smaller ones by about 30g each - will be nothing under 55g when complete. As long as I am transferring filter media and gavel I do NOT have to transfer water too? Also as I am on a well with no chlorine involved how well can I rinse media & gravel in coolish water before reinstalling in new tanks?